[meta] Add to the FAQ explanation on why to accept answers
The FAQ does no have a section explaining how to accept an answer and why this is helpful for the community.
Accepting answers is important for others to know that the question was correctly answered. It will add karma to the user that answered and it's your way to say "thank you".
Here is a link to an StackOverflow answer that can be helpful defining the information that could be added to the FAQ and why accepting an answer is helpful.