Update web2py app docs

Author: jgujerry

.gitignore

@@ -164,3 +164,5 @@ cython_debug/
 .mongodb/
 
 node_modules/
+
+web2py/

web2py-app/README.md

@@ -1,3 +1,46 @@
 # web2py-app
 
 
+## Create a virtual environment
+
+Run the following command to create a virtual environment
+
+```bash
+$ python3 -m venv .venv
+```
+
+then activate it,
+
+```bash
+$ source .venv/bin/activate
+```
+
+
+## Create a Web2Py project
+
+
+Clone Web2Py from its GitHub repo,
+
+```bash
+$ git clone https://github.com/web2py/web2py.git
+```
+
+Enter into the repository,
+
+```bash
+$ cd web2py
+```
+
+To ensure the submodules are inplace, then run
+
+```bash
+$ git submodule update --init --recursive
+```
+
+Then start Web2Py web portal,
+
+```bash
+$ python web2py.py
+```
+
+It'll require you to setup a password. After that, you can visit [http://127.0.0.1:8000](http://127.0.0.1:8000)