Fix numbering in contribution guidelines

Author: curquiza

CONTRIBUTING.md

@@ -20,8 +20,8 @@ First of all, thank you for contributing to Meilisearch! The goal of this docume
 2. Once done, [fork the meilisearch-rails repository](https://help.github.com/en/github/getting-started-with-github/fork-a-repo) in your own GitHub account. Ask a maintainer if you want your issue to be checked before making a PR.
 3. [Create a new Git branch](https://help.github.com/en/github/collaborating-with-issues-and-pull-requests/creating-and-deleting-branches-within-your-repository).
 4. Review the [Development Workflow](#development-workflow) section that describes the steps to maintain the repository.
-6. Make the changes on your branch.
-7. [Submit the branch as a PR](https://help.github.com/en/github/collaborating-with-issues-and-pull-requests/creating-a-pull-request-from-a-fork) pointing to the `main` branch of the main meilisearch-rails repository. A maintainer should comment and/or review your Pull Request within a few days. However depending on the circumstances, it may take longer.<br>
+5. Make the changes on your branch.
+6. [Submit the branch as a PR](https://help.github.com/en/github/collaborating-with-issues-and-pull-requests/creating-a-pull-request-from-a-fork) pointing to the `main` branch of the main meilisearch-rails repository. A maintainer should comment and/or review your Pull Request within a few days. However depending on the circumstances, it may take longer.<br>
  We do not enforce a naming convention for the PRs, but **please use something descriptive of your changes**, keeping in mind that the title of your PR will be automatically added to the next [release changelog](https://github.com/meilisearch/meilisearch-rails/releases/).
 
 ## Development Workflow