Update changelog to prepare for v12.0.1 release (#1251)

Author: ermshiperete

CHANGELOG.md

@@ -16,6 +16,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [12.0.1] - 2023-05-26
+
 ### Fixed
 
 - [SIL.Windows.Forms] Make `PalasoImage.FromFile(Robustly)` methods more robust
@@ -311,8 +313,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - [SIL.NUnit3Compatibility] new project/package that allows to use NUnit3 syntax with NUnit2
   projects
 
-[Unreleased]: https://github.com/sillsdev/libpalaso/compare/v12.0.0...master
+[Unreleased]: https://github.com/sillsdev/libpalaso/compare/v12.0.1...master
 
+[12.0.1]: https://github.com/sillsdev/libpalaso/compare/v12.0.0...v12.0.1
 [12.0.0]: https://github.com/sillsdev/libpalaso/compare/v11.0.1...v12.0.0
 [11.0.1]: https://github.com/sillsdev/libpalaso/compare/v11.0.0...v11.0.1
 [11.0.0]: https://github.com/sillsdev/libpalaso/compare/v10.1.0...v11.0.0