Update CONTRIBUTING.md

docs/CONTRIBUTING.md

@@ -9,10 +9,12 @@ Our software is open source so you can solve your own problems without needing h
 * Join our [Discord](https://discord.comma.ai)
 * Docs are at https://docs.comma.ai and https://blog.comma.ai
 
-### What contributions are we looking for?
+## What contributions are we looking for?
 
 **openpilot's priorities are [safety](SAFETY.md), stability, quality, and features, in that order.** openpilot is part of comma's mission to *solve self-driving cars while delivering shippable intermediaries*, and all developoment is towards that goal.
 
+### What gets merged?
+
 The probability of a pull request being merged is a function of its value to the project and the effort it will take us to get it merged.
 If a PR offers *some* value but will take lots of time to get merged, it will be closed.
 Simple, well-tested bug fixes are the easiest to merge, and new features are the hardest to get merged. 
@@ -51,12 +53,6 @@ A good pull request has all of the following:
   * if you've improved your car's tuning, post before and after plots
 * passes the CI tests
 
-### Car Ports
-
-We've released a [Model Port guide](https://blog.comma.ai/openpilot-port-guide-for-toyota-models/) for porting to Toyota/Lexus models.
-
-If you port openpilot to a substantially new car brand, see this more generic [Brand Port guide](https://blog.comma.ai/how-to-write-a-car-port-for-openpilot/).
-
 ## Contributing without Code
 
 * Report bugs in GitHub issues.