Merge pull request #493 from fabulousgk/fabulousgk/issue465

README: add more info about git workflow and not to open PR

Author: thatblindgeye

README.md

@@ -4,6 +4,8 @@ These exercises consist of a series of CSS-related tasks intended to complement
 
 When doing these exercises, please use all documentation and resources you need to accomplish them. You are _not_ intended to have any of this stuff memorized at this point. Check the docs, use Google, and do what you need to do (besides checking the solutions) to get them done.
 
+We encourage you to practice your git skills by committing your changes and pushing them to your own fork.  However, please **DO NOT** open a Pull Request to have your solutions merged into this repo or to show your solution.  If we were to merge your changes the exercises would no longer be available as intended for new learners, and opening a PR only causes additional work for us, as we have to close it without merging.
+
 ## Contributing
 
 If you have suggestions to improve an exercise, ideas for a new exercise, or notice an issue with an exercise, please feel free to open an issue after thoroughly reading our [contributing guide](https://github.com/TheOdinProject/.github/blob/main/CONTRIBUTING.md).