ReactiveCocoa/ReactiveCocoa — pull request #1168 by RuiAAPeres (2014-03-13 17:01:10+00:00)
Title: Update BasicOperators.md

Added a link to https://github.com/ReactiveCocoa/ReactiveCocoa/issues/448#issuecomment-34977600 as it explains very well the difference between `-map:` and `-flattenMap`.