diff --git a/myems-admin/Dockerfile b/myems-admin/Dockerfile
index 89a1bdf1..34cd215b 100644
--- a/myems-admin/Dockerfile
+++ b/myems-admin/Dockerfile
@@ -1,5 +1,7 @@
 FROM nginx:latest
 
+RUN apt update && apt install -y nano
+
 # remove the default config
 RUN rm /etc/nginx/conf.d/default.conf && \
     rm /etc/nginx/nginx.conf
diff --git a/myems-admin/README.md b/myems-admin/README.md
index 2a14ec7e..93b70e8f 100644
--- a/myems-admin/README.md
+++ b/myems-admin/README.md
@@ -3,6 +3,7 @@
 ## Introduction
 
 系统管理用户界面，用于MyEMS系统配置
+
 Admin UI for MyEMS system settings
 
 ## Prerequisites
@@ -16,9 +17,22 @@ nginx-1.18.0 or later
 
 In this section, you will install myems-admin on Docker.
 
-* replace ~~127.0.0.1:8000~~ in nginx.conf with actual **HOST** ip and port of myems-api
+* Copy source code to root directory
+
+On Windows:
+```bash
+cp -r myems/myems-admin c:\
+cd c:\myems-admin
+```
+
+On Linux:
+```bash
+cp -r myems/myems-admin /
+cd /myems-admin
+```
+
+* Manually replace ~~127.0.0.1:8000~~ in nginx.conf with actual **HOST** ip and port of myems-api
 ```bash
-cd myems/myems-admin
 nano nginx.conf
 ```
 
@@ -28,17 +42,7 @@ nano nginx.conf
 
 * Build a Docker image
 
-On Windows:
 ```bash
-cp -r myems/myems-admin c:\myems-admin
-cd c:\myems-admin
-docker build -t myems/myems-admin .
-```
-
-On Linux:
-```bash
-cp -r myems/myems-admin /myems-admin
-cd /myems-admin
 docker build -t myems/myems-admin .
 ```
 
@@ -49,6 +53,7 @@ If run on Windows host, bind-mount a share upload file folder at c:\myems-upload
 ```bash
 docker run -d -p 8001:8001 -v c:\myems-upload:/var/www/myems-admin/upload -v c:\myems-admin/nginx.conf:/etc/nginx/nginx.conf:ro --restart always --name myems-admin myems/myems-admin
 ```
+
 If run on Linux host, bind-mount a share upload file folder at /myems-upload to the container and also bind-mount nginx.conf 
 ```bash
 docker run -d -p 8001:8001 -v /myems-upload:/var/www/myems-admin/upload -v /myems-admin/nginx.conf:/etc/nginx/nginx.conf:ro --restart always --name myems-admin myems/myems-admin
@@ -72,6 +77,7 @@ If you want to immigrate the image to another computer,
 ```bash
 docker save --output myems-admin.tar myems/myems-admin
 ```
+
 * Copy the tarball file to another computer, and then load image from tarball file
 ```bash
 docker load --input .\myems-admin.tar
diff --git a/myems-aggregation/Dockerfile b/myems-aggregation/Dockerfile
index 69944ef2..534ceaea 100644
--- a/myems-aggregation/Dockerfile
+++ b/myems-aggregation/Dockerfile
@@ -1,6 +1,8 @@
 FROM python:slim
-WORKDIR /code
 
+RUN apt update && apt install -y nano
+
+WORKDIR /code
 COPY . /code
 RUN pip install -r requirements.txt -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com
 CMD ["python", "main.py"]
\ No newline at end of file
diff --git a/myems-aggregation/README.md b/myems-aggregation/README.md
index b440a219..564e4c6d 100644
--- a/myems-aggregation/README.md
+++ b/myems-aggregation/README.md
@@ -6,7 +6,7 @@ Data Aggregation Service
 
 ## Introduction
 
-This service is a component of MyEMS. It aggregates normalized data up to multiple dimensions.
+This service is a component of MyEMS to aggregate normalized data up to multiple dimensions.
 
 ## Prerequisites
 
@@ -45,22 +45,27 @@ cp -r myems/myems-aggregation /
 cd /myems/myems-aggregation
 ```
 
-* Duplicate example.env file as .env file and modify the .env file
-Replace ~~127.0.0.1~~ with real **HOST** IP address.
+* Create .env file based on example.env file
+
+Manually replace ~~127.0.0.1~~ with real **HOST** IP address.
+
 ```bash
 cp example.env .env
 ```
 
 * Build a Docker image
+* 
 ```bash
 docker build -t myems/myems-aggregation .
 ```
+
 * Run a Docker container
 
 On Windows host, bind-mount the .env to the container: 
 ```bash
 docker run -d -v c:\myems-aggregation\.env:/code/.env:ro --restart always --name myems-aggregation myems/myems-aggregation
 ```
+
 On Linux host, bind-mount the .env to the container:
 ```bash
 docker run -d -v /myems-aggregation/.env:/code/.env:ro --restart always --name myems-aggregation myems/myems-aggregation
diff --git a/myems-api/Dockerfile b/myems-api/Dockerfile
index 9392e18e..3c5e716e 100644
--- a/myems-api/Dockerfile
+++ b/myems-api/Dockerfile
@@ -1,9 +1,11 @@
 FROM python:slim
-WORKDIR /code
+
+# RUN apt update && apt install -y nano
 
 # todo: share upload folder with admin container on Docker
 RUN mkdir -p /var/www/myems-admin/upload
 
+WORKDIR /code
 COPY . /code
 RUN pip install -r requirements.txt -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com
 EXPOSE 8000
diff --git a/myems-api/README.md b/myems-api/README.md
index 83e95687..2b279935 100644
--- a/myems-api/README.md
+++ b/myems-api/README.md
@@ -69,25 +69,31 @@ waitress-serve --listen=127.0.0.1:8000 app:api
 
 In this section, you will install myems-api on Docker.
 
-* Duplicate example.env file as .env file and modify the .env file
-Replace ~~127.0.0.1~~ with real **HOST** IP address.
-```bash
-cp example.env .env
-```
-
-* Build a Docker image
+* Copy source code to root directory
 
 On Windows:
 ```bash
 cp -r myems/myems-api c:\
 cd c:\myems-api
-docker build -t myems/myems-api .
 ```
 
 On Linux:
 ```bash
 cp -r myems/myems-api /
 cd /myems-api
+```
+
+* Create .env file based on example.env file
+
+Manually replace ~~127.0.0.1~~ with real **HOST** IP address.
+
+```bash
+cp example.env .env
+```
+
+* Build a Docker image
+
+```bash
 docker build -t myems/myems-api .
 ```
 
diff --git a/myems-cleaning/Dockerfile b/myems-cleaning/Dockerfile
index 69944ef2..534ceaea 100644
--- a/myems-cleaning/Dockerfile
+++ b/myems-cleaning/Dockerfile
@@ -1,6 +1,8 @@
 FROM python:slim
-WORKDIR /code
 
+RUN apt update && apt install -y nano
+
+WORKDIR /code
 COPY . /code
 RUN pip install -r requirements.txt -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com
 CMD ["python", "main.py"]
\ No newline at end of file
diff --git a/myems-cleaning/README.md b/myems-cleaning/README.md
index 607713ed..d1e7842d 100644
--- a/myems-cleaning/README.md
+++ b/myems-cleaning/README.md
@@ -1,11 +1,12 @@
 # myems-cleaning
+
 MyEMS Cleaning Service 
 
 MyEMS 数据清洗服务
 
 ## Introduction
 
-This service is a component of MyEMS. It cleans the historical data. 
+This service is a component of MyEMS to clean the historical data. 
 
 ## Prerequisites
 
@@ -44,8 +45,10 @@ cp -r myems/myems-cleaning /
 cd /myems-cleaning
 ```
 
-* Duplicate example.env file as .env file and modify the .env file
-Replace ~~127.0.0.1~~ with real **HOST** IP address.
+* Create .env file based on example.env file
+
+Manually replace ~~127.0.0.1~~ with real **HOST** IP address.
+
 ```bash
 cp example.env .env
 ```
@@ -54,16 +57,19 @@ cp example.env .env
 ```bash
 docker build -t myems/myems-cleaning .
 ```
+
 * Run a Docker container
 
 On Windows host, bind-mount the .env to the container:
 ```bash
 docker run -d -v c:\myems-cleaning\.env:/code/.env:ro --restart always --name myems-cleaning myems/myems-cleaning
 ```
+
 On Linux host, bind-mount the .env to the container:
 ```bash
 docker run -d -v /myems-cleaning/.env:/code/.env:ro --restart always --name myems-cleaning myems/myems-cleaning
 ```
+
 * -d Run container in background and print container ID
 
 * -v If you use -v or --volume to bind-mount a file or directory that does not yet exist on the Docker host, 
diff --git a/myems-modbus-tcp/Dockerfile b/myems-modbus-tcp/Dockerfile
index 69944ef2..534ceaea 100644
--- a/myems-modbus-tcp/Dockerfile
+++ b/myems-modbus-tcp/Dockerfile
@@ -1,6 +1,8 @@
 FROM python:slim
-WORKDIR /code
 
+RUN apt update && apt install -y nano
+
+WORKDIR /code
 COPY . /code
 RUN pip install -r requirements.txt -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com
 CMD ["python", "main.py"]
\ No newline at end of file
diff --git a/myems-modbus-tcp/README.md b/myems-modbus-tcp/README.md
index aa1b0e3d..76933f7f 100644
--- a/myems-modbus-tcp/README.md
+++ b/myems-modbus-tcp/README.md
@@ -2,7 +2,7 @@
 
 ### Introduction
 
-This service is a component of MyEMS Community Edition to acquire data from Modbus TCP devices.
+This service is a component of MyEMS to acquire data from Modbus TCP devices.
 
 ### Prerequisites
 
@@ -45,8 +45,10 @@ cp -r myems/myems-modbus-tcp /
 cd /myems-modbus-tcp
 ```
 
-* Duplicate example.env file as .env file and modify the .env file
-Replace ~~127.0.0.1~~ with real **HOST** IP address.
+* Create .env file based on example.env file
+
+Manually replace ~~127.0.0.1~~ with real **HOST** IP address.
+
 ```bash
 cp example.env .env
 ```
@@ -55,16 +57,19 @@ cp example.env .env
 ```bash
 docker build -t myems/myems-modbus-tcp .
 ```
+
 * Run a Docker container
 
 On Windows host, bind-mount the .env to the container:
 ```bash
 docker run -d -v c:\myems-modbus-tcp\.env:/code/.env:ro --restart always --name myems-modbus-tcp myems/myems-modbus-tcp
 ```
+
 On Linux host, bind-mount the .env to the container:
 ```bash
 docker run -d -v /myems-modbus-tcp/.env:/code/.env:ro --restart always --name myems-modbus-tcp myems/myems-modbus-tcp
 ```
+
 * -d Run container in background and print container ID
 
 * -v If you use -v or --volume to bind-mount a file or directory that does not yet exist on the Docker host, 
diff --git a/myems-normalization/Dockerfile b/myems-normalization/Dockerfile
index 69944ef2..534ceaea 100644
--- a/myems-normalization/Dockerfile
+++ b/myems-normalization/Dockerfile
@@ -1,6 +1,8 @@
 FROM python:slim
-WORKDIR /code
 
+RUN apt update && apt install -y nano
+
+WORKDIR /code
 COPY . /code
 RUN pip install -r requirements.txt -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com
 CMD ["python", "main.py"]
\ No newline at end of file
diff --git a/myems-normalization/README.md b/myems-normalization/README.md
index fb170944..85926d12 100644
--- a/myems-normalization/README.md
+++ b/myems-normalization/README.md
@@ -6,7 +6,7 @@ MyEMS Normalization Service
 
 ## Introduction
 
-This service is a component of MyEMS. It normalizes energy data in historical database.
+This service is a component of MyEMS to normalize energy data in historical database.
 
 ![MyEMS Meter Normalization](../docs/images/meter-normalization.png)
 
@@ -51,10 +51,10 @@ cp -r myems/myems-normalization /
 cd /myems-normalization
 ```
 
-* Create .env file
+* Create .env file based on example.env file
+
+Manually replace ~~127.0.0.1~~ with real **HOST** IP address.
 
-Duplicate example.env file as .env file and modify the .env file
-Replace ~~127.0.0.1~~ with real **HOST** IP address.
 ```bash
 cp example.env .env
 ```
@@ -63,6 +63,7 @@ cp example.env .env
 ```bash
 docker build -t myems/myems-normalization .
 ```
+
 * Run a Docker container
 
 On Windows host, bind-mount the .env to the container:
diff --git a/myems-web/Dockerfile b/myems-web/Dockerfile
index 87baa41f..dba42800 100644
--- a/myems-web/Dockerfile
+++ b/myems-web/Dockerfile
@@ -1,4 +1,4 @@
-FROM  node:latest as build-stage
+FROM node:latest as build-stage
 WORKDIR /opt
 COPY . .
 RUN npm install --registry https://registry.npm.taobao.org
@@ -7,14 +7,14 @@ RUN npm run build
 
 FROM nginx:latest as production-stage
 
+RUN apt update && apt install -y nano
+
 # remove the default config
 RUN rm /etc/nginx/conf.d/default.conf && rm /etc/nginx/nginx.conf
 
 # create new root folder
 RUN mkdir -p /var/www/myems-web
 
-# Note: You should run 'npm run build' in the web direction to generate the production build.
-
 COPY nginx.conf /etc/nginx/
 COPY --from=build-stage /opt/build/ /var/www/myems-web
 EXPOSE 80
diff --git a/myems-web/README.md b/myems-web/README.md
index 58118d73..e9176d6e 100644
--- a/myems-web/README.md
+++ b/myems-web/README.md
@@ -3,6 +3,7 @@
 ## Introduction
 
 Web用户界面，用于MyEMS能源数据可视化
+
 Web UI for MyEMS energy data visualization
 
 ## Prerequisites
@@ -72,21 +73,26 @@ cd myems/myems-web
 nano nginx.conf
 ```
 
-* Build a Docker image
 
-**NOTE**: You can safely ignore the command 'npm run build' in this section, because it is built into the Dockerfile
+* Copy source code to root directory
 
 On Windows:
 ```bash
-cp -r myems/myems-web c:\myems-web
+cp -r myems/myems-web c:\
 cd c:\myems-web
-docker build -t myems/myems-web .
 ```
 
 On Linux:
 ```bash
-cp -r myems/myems-web /myems-web
+cp -r myems/myems-web /
 cd /myems-web
+```
+
+**NOTE**: You can safely ignore the command 'npm run build' in this section, because it is built into the Dockerfile
+
+* Build a Docker image
+
+```bash
 docker build -t myems/myems-web .
 ```
 
@@ -119,6 +125,7 @@ If you want to immigrate the image to another computer,
 ```bash
 docker save --output myems-web.tar myems/myems-web
 ```
+
 * Copy the tarball file to another computer, and then load image from tarball file
 ```bash
 docker load --input .\myems-web.tar