RK-A

In Python 3 Doc Library Reference > Development Tools > unittest — Unit testing framework, 'important concepts' points to 'Important Tk concepts'. While this is wrong, we should have Tk (in any document) point to 'Important Tk Concepts' document. So, we need to extract Tk and add to processed_full_headers for such documents. Since we have added 'concept' and 'important concept' to exclude_headers_list, should we check to extract important substrings like the above using exclude_headers_list?