docs: Upgrade style in CONTRIBUTING.md

Author: adrienfort

CONTRIBUTING.md

@@ -85,12 +85,12 @@ Then, follow these guidelines:
 
 - **Group Commits:** Each commit should represent a meaningful change. Instead, these commits should be squashed together into a single "Add Feature" commit.
 > For instance, a PR should not look like :
-> - 1) Add Feature X
-> - 2) Fix Typo
-> - 3) Changes to features X
-> - 5) Bugfix for feature X
-> - 6) Fix Linter 7)
-> - ...
+> 1) Add Feature X
+> 2) Fix Typo
+> 3) Changes to features X
+> 5) Bugfix for feature X
+> 6) Fix Linter 7)
+> 7) ...
 
 - Each commit should **work on its own**: it must compile, pass the linter and so on.
 > This makes life much easier when using `git log`, `git blame`, `git bisect`, etc...\
@@ -109,4 +109,4 @@ Then, follow these guidelines:
   - `chore:` general things that should be excluded (e.g., `chore: Clean up X`);
   - `ci:` for internal CI specific changes (e.g., `ci: Enable X for tests`);
 
-> Made with :heart: by PoC
+> Made with :heart: by PoC