Suggested issue before PR

Author: wshayes

CONTRIBUTING.md

@@ -70,7 +70,9 @@ Enhancement suggestions are tracked as [GitHub issues](https://guides.github.com
 
 ### Pull Requests
 
-This is the main way how you can contribute to the specification. Feel free to open a pull request for your propsed changes at any time. The requirements described here have several goals:
+This is the main way how you can contribute to the specification. Feel free to open a pull request for your proposed changes at any time. It is advised to open a Github issue in the project first to get feedback from other users/maintainers before opening a pull request. You can then reference that issue in the Pull Request.
+
+The requirements described here have several goals:
 
 - Maintain the quality of json-graph-specification
 - Fix problems that are important to users
@@ -82,4 +84,4 @@ Please adhere to these requirements to have your contribution considered by the
 2. Explain in your pull request what you are trying to achieve, and why
 3. Be open minded about suggestions or other perspectives from the maintainers and other contributors
 
-While the prerequisites above must be satisfied prior to having your pull request reviewed, the reviewer(s) may ask you to complete additional design work, tests, or other changes before your pull request can be ultimately accepted.
+While the prerequisites above must be satisfied prior to having your pull request reviewed, the reviewer(s) may ask you to complete additional design work, tests, or other changes before your pull request can be ultimately accepted.