docs: add feature release checklist to CONTRIBUTING.md

Added a feature release checklist to the contributing guidelines.

Author: OrKoN

CONTRIBUTING.md

@@ -37,6 +37,17 @@ information on using pull requests.
 Please follow [conventional commits](https://www.conventionalcommits.org/en/v1.0.0/)
 for PR and commit titles.
 
+### Feature release checklist
+
+Use `chore:` for commits if the feature is not available to users yet.
+Once the feature is ready to be released, create a PR with a `feat:` prefix
+that enables the feature. The following criteria need to be completed:
+
+- Documentation for the feature is up to date. For example, README.md and tools reference are updated.
+- The feature can be used with Chrome stable or version restrictions are documented otherwise.
+- Corresponding skills are updated or new skills are added if needed.
+- The feature fulfills the use case by its own or in conjunction with existing features (we want to avoid features that offer some tools but cannot be used successfully to debug things).
+
 ## Installation
 
 Check that you are using node version specified in .nvmrc, then run following commands: