README updated

README.md

@@ -12,11 +12,28 @@ Features
 --------
 
 * Login/Logout
+* Check in/Check out
+
+
+Install
+-------
+
+Either clone this repo and `pip install .` or use one of the provided packages.
+Pay attention: this package needs a working binary of [geckodriver](https://github.com/mozilla/geckodriver).
+You can either proceed in one of the following ways:
+
+* Install the source distribution and put in your `$PATH` the `geckodriver` binary
+  (that can be downloaded [here](https://github.com/mozilla/geckodriver/releases/))
+* Install the wheel for your architecture
+* `pip install .` or `pip install -e .` will download the latest `geckodriver` and
+  put it in a path where the code will be able to find it.
+
+*BEWARE*: the code gives precedence to the `geckodriver` in `$PATH` over that donwloaded.
 
 TODO
 ----
 
- * Check in/out
- * systemd {unit, timer}
- * APIs
- * ...
+ [x] Check in/out
+ [ ] systemd {unit, timer}
+ [ ] APIs
+ [ ] Mailer