docs: simplify README and align docs terminology around policy gate

Author: sidmohan0

CONTRIBUTING.md

@@ -1,17 +1,12 @@
-# datafog contributing guidelines
+# Contributing to DataFog
 
-The datafog community appreciates your contributions via issues and
-pull requests. Note that the [code of conduct](CODE_OF_CONDUCT.md)
-applies to all interactions with the datafog project, including
-issues and pull requests.
+DataFog welcomes contributions via issues and pull requests. The [Code of Conduct](CODE_OF_CONDUCT.md) applies to all project interactions, including issues and PRs.
+
+When submitting a pull request:
+
+- Follow project style guidelines.
+- Ensure tests and docs are updated where behavior changes.
+- Keep commit messages clear and descriptive.
+- Confirm your work is covered by a compatible license in line with the project [`LICENSE`](LICENSE).
 
-When submitting pull requests, please follow the style guidelines of
-the project, ensure that your code is tested and documented, and write
-good commit messages, e.g., following [these
-guidelines](https://chris.beams.io/posts/git-commit/).
 
-By submitting a pull request, you are licensing your code under the
-project [license](LICENSE) and affirming that you either own copyright
-(automatic for most individuals) or are authorized to distribute under
-the project license (e.g., in case your employer retains copyright on
-your work).