chore: document null tag

Author: e111077

CHANGELOG.md

@@ -6,7 +6,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 <!-- ## Unreleased -->
 
-## [v0.24.0] - 2021-09-20
+## [v0.25.0] - 2021-09-20
 
 ### Changed
 
@@ -17,6 +17,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
     explicitly includes the latest Lit 1 versions of lit-html and lit-element
     or deduplicate your versions of Lit 1 with your bundler
 
+## [v0.25.0] - 2021-09-20
+
+null version. accidentally polluted tag.
+
 ## [v0.23.0] - 2021-09-13
 
 **This is the last Lit 1 release. Future releases will be using Lit 2.0.0**