📝 Update index according to readme

docs/docs/index.md

@@ -23,24 +23,55 @@
 
 **Source Code**: View it on [Github](https://github.com/ycd/manage-fastapi/)
 
-**Installation**: `pip install manage-fastapi`
 
 ---
 
-
-
 ##  Features 🚀
 
 * #### Creates customizable **project boilerplate.**
 * #### Creates customizable **app boilerplate.**
 * #### Handles the project structuring for you.
 
+## Installation
 
+Manage FastAPI can be installed by running `pip install manage-fastapi`. It requires Python 3.6+ to run.
 
 ## Usage
 
+To get started right away with sensible defaults:
+
+```bash
+fastapi startproject {name}
+```
+
+You can run _Manage FastAPI_ as a package if running it as a script doesn’t work:
+
+```bash
+python -m fastapi startproject {name}
+```
+
+## Command line options
+
+Manage FastAPI has three commands for now. You can list them by running `fastapi --help`:
+
 <img src="../docs_assets/fastapi-help.png" width=700>
 
+The idea is to have a highly customizable CLI, but at the same time a simple interface for new users. You can see the available options for `startproject` running `fastapi startproject --help`:
+
+<img src="../docs_assets/startproject-help.png" width=700>
+
+The other commands are already available but the current implementation is too shallow. More details about `startapp` and `run` commands will be provided once they have more functionalities, at the moment you can run `startapp` by just:
+
+```bash
+fastapi startapp {name}
+```
+
+On the other hand, the `run` command expects you to have a `startproject` structure:
+
+```bash
+fastapi run
+```
+
 ## License
 
 This project is licensed under the terms of the MIT license.