Use contrib tool branch naming

Co-authored-by: Matti Schneider <[email protected]>

Author: Cli4d

content/contributing-terms.en.md

@@ -21,7 +21,7 @@ In order to add declarations:
 To add a declaration, you need to follow these steps:
 
 1. Clone the [`contrib-declarations`](https://github.com/OpenTermsArchive/contrib-declarations) repository to your local machine.
-2. Create a branch that describes your contribution e.g. `add-Open-Terms-Archive-ToS` or `add-firefox-privacy-policy`
+2. Create a branch that describes your contribution e.g. `add_open_terms_archive_terms_of_service` or `add_firefox_privacy_policy`
 3. Run `npm install`. This will install all the dependencies including the Open Terms Archive engine which will allow you to test and validate your declaration.
 4. Create a JSON file with, as filename, the service ID of the service you are adding the declaration for. This JSON file should be in the `declarations` folder of the repository. To learn more about selecting the right service ID, please read the [declaring a new service]({{< relref "reference/declaration#declaring-a-new-service" >}}) section.
 5. Visit the declaration URL and use [browser developer tools](https://developer.mozilla.org/en-US/docs/Learn/Common_questions/Tools_and_setup/What_are_browser_developer_tools) to inspect the page and find the right selectors for the significant section containing the terms you want to declare and parts to remove.