Fix problem with python command not found when using python extension (#13)

* alias python3 and pip3

Author: linogaliana

Dockerfile

@@ -29,3 +29,6 @@ RUN code-server --install-extension ms-python.python
 RUN code-server --install-extension ms-kubernetes-tools.vscode-kubernetes-tools
 RUN code-server --install-extension redhat.vscode-yaml  
 #ADD vscode-settings.json /home/coder/.local/share/code-server/User/settings.json
+
+RUN alias python=python3
+RUN echo "alias pip=pip3" >> ~/.bashrc

README.md

@@ -1,12 +1,47 @@
 # What is vscode-python?
+
 A docker image based on https://github.com/cdr/code-server tailored for python programming.
 
+It aims to provide a state-of-the-art IDE with some modules adapted to `Python` to help developers.  
+
 # How to use it
-Please visit https://github.com/cdr/code-server for knowing how to use this image.
+
+To run a `Python` script in interactive mode, create a new file with `.py` extension, write some commands, e.g. 
+
+```python
+import pandas as pd
+pd.DataFrame([0, 1, 2])
+```
+
+and press ```SHIFT + ENTER```
+
+If you need a package, e.g. `flask`, open a terminal and run 
+
+```shell
+pip install flask
+```
+
+Please visit https://github.com/cdr/code-server to learn how to use this image.
 
 # How to contribute
 If you find something is missing for general python programming with this image, don't hesitate to let us know, either with an issue or by submitting a PR.
 
 # Tips
+
 - Use [Settings Sync](https://marketplace.visualstudio.com/items?itemName=Shan.code-settings-sync) to sync up your custom configuration and extension and start a new properly tuned session in a heartbeat.
 - The paste shortcut in the terminal is: ```SHIFT + INSER```
+- To execute code use ```SHIFT + ENTER```
+
+# Run in a local container
+
+First pull the image:
+
+```shell
+docker pull InseeFrLab/vscode-python
+```
+
+```shell
+docker run -it -p 127.0.0.1:8080:8080 -e PASSWORD="YOUR_PASSWORD" InseeFrLab/vscode-python
+```
+
+:tada: open your browser at `http://localhost:8080/` and use the password you chose (e.g. `YOUR_PASSWORD`)