Improve documentation for some modules

doc/SETUP.org

@@ -5,14 +5,14 @@ You'd be really helping me, I want to make the setup as straightforward as possi
 * Few notes
 I understand people may not super familiar with Python, PIP or generally unix, so here are some short notes:
 
-- only python3 is supported, and more specifically, ~python >= 3.5~.
+- only python3 is supported, and more specifically, ~python >= 3.6~.
 - I'm using ~pip3~ command, but on your system you might only have ~pip~.
 
   If your ~pip --version~ says python 3, feel free to use ~pip~.
 
 - similarly, I'm using =python3= in the documentation, but if your =python --version= says python3, it's okay to use =python=
 
-- when you are using ~pip install~, [[https://stackoverflow.com/a/42989020/706389][always pass]] =--user=
+- when you are using ~pip install~, [[https://stackoverflow.com/a/42989020/706389][always pass]] =--user=, and *never install third party packages with sudo* (unless you know what you are doing)
 - throughout the guide I'm assuming the config directory is =~/.config=, but it's different on Mac/Windows.
 
   See [[https://github.com/ActiveState/appdirs/blob/3fe6a83776843a46f20c2e5587afcffe05e03b39/appdirs.py#L187-L190][this]] if you're not sure what's your user config dir.