Edit: Granted ">>=" (bind is the word you are after) is kind of special and you need to understand more of the underlying language mechanics to get it. The provided explanation tells you little unless you can grok the function signature. I think it's almost universally accepted that a lot of the documentation is atrocious.
https://hackage.haskell.org/package/base-4.8.2.0/docs/Prelud...
Edit: Granted ">>=" (bind is the word you are after) is kind of special and you need to understand more of the underlying language mechanics to get it. The provided explanation tells you little unless you can grok the function signature. I think it's almost universally accepted that a lot of the documentation is atrocious.