In addition, I would like to see GitHub reviewing my code & giving me suggestions on how I could improve. That will be more educative & a tool to ensure consistency across code.
I'm surprised this doesn't exist. Google, FB, and Apple (and I imagine Microsoft) have a lot of this stuff built in that is light-years better than any open source solution I'm aware of.
Given that MS owns GitHub and how valuable this is - I imagine it will be coming soon.