f Superflous 'in the spec'

Co-authored-by: wpaulino <[email protected]>

Author: tnull

README.md

@@ -14,7 +14,7 @@ section.
 Status
 ------
 The project implements all of the [BOLT
-specifications](https://github.com/lightning/bolts) in the spec. The
+specifications](https://github.com/lightning/bolts). The
 implementation has pretty good test coverage that is expected to continue to
 improve. It is also anticipated that as developers begin using the API, the
 lessons from that will result in changes to the API, so any developer using this