I understand the motivation but it doesn't work. The problem isn't people don't understand how a bill was made it is that they do not care what is in the bill. It isn't rocket science finding out who inserted what in a bill. Every time some piece of pork or special interest group gets something good the collective response is to shrug. No one cares.

You actually want people suggesting changes to bills at the committee stage. What happens now is that bills are written by committee members based on broad directions from leadership. The first time the bill is seen everything in the bill has been baked in the oven so to speak. What you are suggesting will drive bill making process even more underground as members are scared of suggesting unpopular changes to bills they actually support.

They should just make a law that requires all legislation to be hosted publicly on github.

Why would you choose a private commercial entity like Github as a host?

1) There are people working on that.

2) How would that change anything whatsoever?