Hello GNU Radio dev community! I wanted to pass on some information for you that might be a good way for you to help contribute to our project. Thanks to Pete Mathys during out GRCon15 Hackfest, we now have a list of blocks with minimal or no documentation. I've put together a Google spreadsheet that lists all of the blocks in question. For anyone looking to help us fix the documentation, this would be a good place to start.
One of the issues is that many of these blocks are Python-based as hierarchical blocks. Some have full documentation that is not properly getting exported into GRC. So it might not be a case of documentation but helping identify how to get that information out there.
https://docs.google.com/spreadsheets/d/1Tb4nRjz8ruhzq-TlpkKFsByWI92fsON2cqR5HOolIwE/edit?usp=sharing