Update project name in CONTRIBUTING.md

Author: gwynne

CONTRIBUTING.md

@@ -1,5 +1,5 @@
 ## How to contribute your work
 
-Please open a pull request at https://github.com/stairtree/NetworkClient. Make sure the CI passes, and then wait for code review.
+Please open a pull request at https://github.com/stairtree/StructuredAPIClient. Make sure the CI passes, and then wait for code review.
 
 After review you may be asked to make changes.  When you are ready, use the request re-review feature of github or mention the reviewers by name in a comment.