Update CONTRIBUTING.md

Co-authored-by: Lee Dohm <1038121+lee-dohm@users.noreply.github.com>

CONTRIBUTING.md

@@ -6,7 +6,7 @@ Read our [Code of Coduct](https://github.com/github/docs-internal/blob/main/CODE
 
 In this guide you will get an overview of the contribution workflow from opening an issue, creating a PR, reviewing, and merging the PR.
 
-Use table of contents icon <img src="./assets/images/table-of-contents.png" width="25" height="25" /> on the top left corner of the this document to get to a specific section of this guide quickly.
+Use the table of contents icon <img src="./assets/images/table-of-contents.png" width="25" height="25" /> on the top left corner of the this document to get to a specific section of this guide quickly.
 
 ## New contributor guide