add Semantic Commit Messages

CONTRIBUTING.md

@@ -60,6 +60,40 @@ The process is straight-forward.
 10. By submitting a PR, it is needed to use the provided PR template and check all boxes, performing the required tasks and accepting the CLA.
 11. Pull requests that don't meet the above will be denied and closed.
 
+
+## Semantic Commit Messages
+
+See how a minor change to your commit message style can make you a better programmer.
+
+Format: `<type>(<scope>): <subject>`
+
+`<scope>` is optional
+
+## Example
+
+```
+feat: add hat wobble
+^--^  ^------------^
+|     |
+|     +-> Summary in present tense.
+|
++-------> Type: chore, docs, feat, fix, refactor, style, or test.
+```
+
+More Examples:
+
+- `feat`: (new feature for the user, not a new feature for build script)
+- `fix`: (bug fix for the user, not a fix to a build script)
+- `docs`: (changes to the documentation)
+- `style`: (formatting, missing semi colons, etc; no production code change)
+- `refactor`: (refactoring production code, eg. renaming a variable)
+- `test`: (adding missing tests, refactoring tests; no production code change)
+- `chore`: (updating grunt tasks etc; no production code change)
+
+References:
+
+- https://www.conventionalcommits.org/
+
 --------------------------------------
 
 ## Contributor License Agreement (CLA)