Removed outdated requirements install

Author: knmcguire

docs/installation/install.md

@@ -42,15 +42,15 @@ you can skip this section.
 
 * To deactivate the virtualenv when you are done using it `deactivate`
 
-#### Install cflib dependencies
-Install dependencies required by the lib: `pip install -r requirements.txt`. If you are planning on developing on the lib you should also run: `pip install -r requirements-dev.txt`.
-
-To verify the installation, connect the crazyflie and run an example: `python3 examples/logging/basiclog.py`
-
-### Pre commit hooks
+### Pre commit hooks (Ubuntu)
 If you want some extra help with keeping to the mandated python coding style you can install hooks that verify your style at commit time. This is done by running:
 ```
+$ pip3 install pre-commit
+```
+go to crazyflie-lib-python root folder and run
+```
 $ pre-commit install
+$ pre-commit run --all-files
 ```
 This will run the lint checkers defined in `.pre-commit-config-yaml` on your proposed changes and alert you if you need to change anything.