Add readme notice

Author: pcj

README.md

@@ -1,7 +1,17 @@
+# Notice
+
+This is fork of [bazelbuild/rules_closure](https://github.com/bazelbuild/rules_closure) with the following main differences:
+
+- the `closure/library` has been restored.
+- support for protobuf-javascript has been restored.
+- support for closure-templates has been restored.
+- bzlmod deps updated
+- stricter .bazelrc flags
+
 # Closure Rules for Bazel (αlpha) [![Bazel CI build status](https://badge.buildkite.com/7569410e2a2661076591897283051b6d137f35102167253fed.svg)](https://buildkite.com/bazel/closure-compiler-rules-closure-postsubmit)
 
-JavaScript | Stylesheets | Miscellaneous
---- | --- | ---
+JavaScript           | Stylesheets           | Miscellaneous
+---------------------|-----------------------|-----------------
 [closure_js_library] | [closure_css_library] | [phantomjs_test]
 [closure_js_binary] | [closure_css_binary] | |
 [closure_js_test] | |