docs: Add code ownership section to CONTRIBUTING guide (#8584)

Author: mtrezza

CONTRIBUTING.md

@@ -11,6 +11,7 @@
   - [Review Feedback](#review-feedback)
   - [Merge Readiness](#merge-readiness)
   - [Review Validity](#review-validity)
+  - [Code Ownership](#code-ownership)
 - [Environment Setup](#environment-setup)
   - [Recommended Tools](#recommended-tools)
   - [Setting up your local machine](#setting-up-your-local-machine)
@@ -34,6 +35,8 @@
   - [Breaking Change](#breaking-change-1)
   - [Reverting](#reverting)
   - [Security Vulnerability](#security-vulnerability)
+    - [Local Testing](#local-testing)
+    - [Merging](#merging-1)
 - [Releasing](#releasing)
   - [General Considerations](#general-considerations)
   - [Major Release / Long-Term-Support](#major-release--long-term-support)
@@ -143,6 +146,12 @@ It's contrary to an open, collaborative environment to expect others to be invol
 
 Your arguments must focus on the issue, not on your assumption of someone else's personal experience. We will take immediate and appropriate action in case of personal attacks, regardless of your previous contributions. Personal attacks are not permissible. If you became a victim of personal attacks, you can privately [report](https://docs.github.com/en/communities/maintaining-your-safety-on-github/reporting-abuse-or-spam) the GitHub comment to the Parse Platform PMC.
 
+### Code Ownership
+
+> *Can I open a new pull request based on another author's pull request?*
+
+If your pull request contains work from someone else then you are required to get their permission to use their work in your pull request. Please make sure to observe the [license](LICENSE) for more details. In addition, as an appreciative gesture you should clearly mention that your pull request is based on another pull request with a link in the top-most comment of your pull request. To avoid this issue we encourage contributors to collaborate on a single pull request to preserve the commit history and clearly identify each author's contribution. To do so, you can review the other author's pull request and submit your code suggestions, or ask the original author to grant you write access to their repository to also be able to make commits directly to their pull request.
+
 ## Environment Setup
 
 ### Recommended Tools