Update change log for 1.8.1

Author: homebysix

CHANGELOG.md

@@ -3,10 +3,11 @@
 All notable changes to this project will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org/).
 
 
-## [1.8.1] - TBD
+## [1.8.1] - 2020-12-08
 
 ### Removed
 - Removed warning about setting MinimumVersion of AutoPkg recipes to 2.0+.
+- Reverted 1.4 minimum version requirement for processors that use URLGetter (introduced in 1.7.0).
 
 
 ## [1.8.0] - 2020-10-08
@@ -200,7 +201,8 @@ All notable changes to this project will be documented in this file. This projec
 - Initial release
 
 
-[Unreleased]: https://github.com/homebysix/pre-commit-macadmin/compare/v1.8.0...HEAD
+[Unreleased]: https://github.com/homebysix/pre-commit-macadmin/compare/v1.8.1...HEAD
+[1.8.1]: https://github.com/homebysix/pre-commit-macadmin/compare/v1.8.0...v1.8.1
 [1.8.0]: https://github.com/homebysix/pre-commit-macadmin/compare/v1.7.0...v1.8.0
 [1.7.0]: https://github.com/homebysix/pre-commit-macadmin/compare/v1.6.2...v1.7.0
 [1.6.2]: https://github.com/homebysix/pre-commit-macadmin/compare/v1.6.1...v1.6.2