fixed path

Author: Shlomi Noach

README.md

@@ -18,7 +18,7 @@ Please meanwhile refer to the [docs](doc) for more information. No, really, go t
 - [Cut over phase](doc/cut-over.md)
 - [Testing on replica](doc/testing-on-replica.md)
 - [Throttle](doc/throttle.md)
-- [Operational perks](perks.md)
+- [Operational perks](doc/perks.md)
 - [Migrating with Statement Based Replication](doc/migrating-with-sbr.md)
 - [Understanding output](doc/understanding-output.md)
 - [Interactive commands](doc/interactive-commands.md)