Prepare to release 2.0.0-rc2

Author: colinodell

CHANGELOG.md

@@ -6,6 +6,8 @@ Updates should follow the [Keep a CHANGELOG](https://keepachangelog.com/) princi
 
 ## [Unreleased][unreleased]
 
+## [2.0.0-rc2] - 2021-07-17
+
 ### Fixed
 
 - Fixed Mentions inside of links creating nested links against the spec's rules (#688)
@@ -325,7 +327,8 @@ No changes were introduced since the previous release.
     - Alternative 1: Use `CommonMarkConverter` or `GithubFlavoredMarkdownConverter` if you don't need to customize the environment
     - Alternative 2: Instantiate a new `Environment` and add the necessary extensions yourself
 
-[unreleased]: https://github.com/thephpleague/commonmark/compare/2.0.0-rc1...main
+[unreleased]: https://github.com/thephpleague/commonmark/compare/2.0.0-rc2...main
+[2.0.0-rc2]: https://github.com/thephpleague/commonmark/compare/2.0.0-rc1...2.0.0-rc2
 [2.0.0-rc1]: https://github.com/thephpleague/commonmark/compare/2.0.0-beta3...2.0.0-rc1
 [2.0.0-beta3]: https://github.com/thephpleague/commonmark/compare/2.0.0-beta2...2.0.0-beta3
 [2.0.0-beta2]: https://github.com/thephpleague/commonmark/compare/2.0.0-beta1...2.0.0-beta2