Merge pull request #47 from VincentAuriau/enh-doc

ADD: pip install in readme

README.md

@@ -1,11 +1,19 @@
-## PyAlapin, your customized chess engine
+# PyAlapin, your customized chess engine
 Is it the best, most efficient and state of the art chess engine ? I'm pretty sure not.
 
 However, driven by passion and madness, I have developed my own chess game in Python.
 For your pretty eyes and your devilish smile, I share it with you. But only with you.
 
 Special thanks and dedication to LeMerluche, crushing its opponents on chess.com with alapin openings ❤️
 
+## How to install
+Simply use:
+```bash
+pip install pyalapin
+```
+You only need [numpy](https://numpy.org/) to play with with terminal interface and with Python.
+You will need [kivy](https://kivy.org/) to play with the interface.
+
 ## How to play with interface
 ```python
 from pyalapin.interface import ChessApp