Update CONTRIBUTING.md according to the comments

CONTRIBUTING.md

@@ -44,17 +44,22 @@ can be accepted.
 1. Submit the pull request. *Do not leave the pull request blank*. Explain exactly
    what your changes are meant to do and provide simple steps on how to validate.
    your changes. Ensure that you reference the issue you created as well.
-   1.1 The commits message should prefix "External-ccm:"
-   1.2 All commits should be squashed to a single commit before merging
 1. We will assign the pull request to 2-3 people for review before it is merged.
-1. Best Practices:
-   1.1 Follow the development guidelines [here](docs/development.md)
-   1.2 `govet`, `golint`, `gofmt` should pass on the PR
-   1.3 Make targets "build" and "test" should be successful on the PR
-   1.4 E2E should be run on a self managed test cluster, you will have to create a test
-   cluster with the image generated from your changes.
-   Please follow E2E guide [here](test/e2e/cloud-provider-oci/README.md)
-   1.5 E2E tests should pass on 3 versions of kubernetes currently supported by the repo.
+
+### Commit Message
+
+* The commits message should prefix "External-ccm:".
+* All commits should be squashed to a single commit before merging.  
+
+### Best Practices:
+
+* Follow the development guidelines [here](docs/development.md)
+* `govet`, `golint`, `gofmt` should pass on the PR
+* Make targets "build" and "test" should be successful on the PR
+* E2E should be run on a self managed test cluster, you will have to create a test
+  cluster with the image generated from your changes.
+  Please follow E2E guide [here](test/e2e/cloud-provider-oci/README.md)
+* E2E tests should pass on 3 versions of kubernetes currently supported by the repo.
 
 ## Code of conduct