The information on this site isn't static an bits will go out of date. if you spot an area that could do with updating then you can suggest an edit.
If you haven't already done so log in or create an account—see How to contribute for details of how to do this. Navigate to the page you think should be changed.
Click on the "Suggest Edits" link in the top right hand corner. The page editor opens. Make any suggested changes using the readme.io editor and Markdown—see basic markdown and writing and formatting on GitHub
Note: This does not change the page until an admin has approved the changes.
You should also add a brief explanation as to why the changes are necessary or desirable.