Update changelog

Author: adamwathan

CHANGELOG.md

@@ -8,7 +8,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 - Nothing yet!
--
+
+## [2.0.0-alpha.13] - 2020-11-11
+
+### Added
+
+- Add support for default duration and timing function values whenever enabling transitions ([#2755](https://github.com/tailwindlabs/tailwindcss/pull/2755))
+
+
 ## [2.0.0-alpha.12] - 2020-11-10
 
 ### Fixed
@@ -1141,7 +1148,8 @@ No release notes
 
 - Everything!
 
-[unreleased]: https://github.com/tailwindlabs/tailwindcss/compare/v2.0.0-alpha.12...HEAD
+[unreleased]: https://github.com/tailwindlabs/tailwindcss/compare/v2.0.0-alpha.13...HEAD
+[2.0.0-alpha.13]: https://github.com/tailwindlabs/tailwindcss/compare/v2.0.0-alpha.12...v2.0.0-alpha.13
 [2.0.0-alpha.12]: https://github.com/tailwindlabs/tailwindcss/compare/v2.0.0-alpha.11...v2.0.0-alpha.12
 [2.0.0-alpha.11]: https://github.com/tailwindlabs/tailwindcss/compare/v2.0.0-alpha.10...v2.0.0-alpha.11
 [2.0.0-alpha.10]: https://github.com/tailwindlabs/tailwindcss/compare/v2.0.0-alpha.9...v2.0.0-alpha.10