CHANGELOG.md: update for 0.6.1 final.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

CHANGELOG.md

@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## [0.6.1-rc1] - 2018-08-25: "Principled Opposition To Segwit"
+## [0.6.1] - 2018-09-11: "Principled Opposition To Segwit"
 
 This release named by ZmnSCPxj.
 
@@ -133,8 +133,8 @@ There predate the BOLT specifications, and are only of vague historic interest:
 6. [0.5.1] - 2016-10-21
 7. [0.5.2] - 2016-11-21: "Bitcoin Savings & Trust Daily Interest II"
 
-[Unreleased]: https://github.com/ElementsProject/lightning/compare/v0.6...HEAD
-[0.6.1-rc1]: https://github.com/ElementsProject/lightning/releases/tag/v0.6.1-rc1
+[Unreleased]: https://github.com/ElementsProject/lightning/compare/v0.6.1...HEAD
+[0.6.1]: https://github.com/ElementsProject/lightning/releases/tag/v0.6.1
 [0.6]: https://github.com/ElementsProject/lightning/releases/tag/v0.6
 [0.5.2]: https://github.com/ElementsProject/lightning/releases/tag/v0.5.2-2016-11-21
 [0.5.1]: https://github.com/ElementsProject/lightning/releases/tag/v0.5.1-2016-10-21