meta: updated contributing with new verbs, remove scopes

CONTRIUBTING.md

@@ -13,19 +13,15 @@
 
 Please use the following format for your commit messages:
 
-`<type>[optional scope]: <description>`
+`<type>: <description>`
 
 #### Verbs:
 
 1. **feat** – a new feature is introduced with the changes
 2. **fix** – a bug fix has occurred
 3. **chore** – changes that do not relate to a fix or feature and don't modify src or test files (for example updating dependencies)
 4. **refactor** – refactored code that neither fixes a bug nor adds a feature
-5. **meta** – updates to documentation such as a the README or other markdown files
+5. **meta** – updates to documentation and other non-source related files
 6. **style** – changes that do not affect the meaning of the code, likely related to code formatting such as white-space, missing semi-colons, and so on.
-7. **devops** – devops (e.g Dockerfile, ci/cd) related
-8. **revert** – reverts a previous commit 
-
-#### Scopes:
-
-1. **!** - breaking change
+7. **revert** – reverts a previous commit 
+8. **major** - introduces a breaking change