chore(roadmap): add few items in the roadmap

Author: sebastien-boulle

README.md

@@ -216,6 +216,8 @@ See the [open issues](https://github.com/lumapps/commit-msg-validator/issues) fo
 - [x] avoid trailing space
 - [x] allow automated revert commit
 - [ ] allow fixup! and squash! commit with an option
+- [ ] allow to not check JIRA reference with an option
+- [ ] enforce subject length (3 words at least)
 
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