doc: change glossary link in pull request guide to node's glossary doc

PR-URL: https://github.com/nodejs/node/pull/43318
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Akhil Marsonya <akhil.marsonya27@gmail.com>
Reviewed-By: Danielle Adams <adamzdanielle@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Qingyu Deng <i@ayase-lab.com>
Reviewed-By: Zijian Liu <lxxyxzj@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>

doc/contributing/pull-requests.md

@@ -319,7 +319,7 @@ There are a number of more advanced mechanisms for managing commits using
 Feel free to post a comment in the pull request to ping reviewers if you are
 awaiting an answer on something. If you encounter words or acronyms that
 seem unfamiliar, refer to this
-[glossary](https://chromium.googlesource.com/chromiumos/docs/+/HEAD/glossary.md).
+[glossary](https://github.com/nodejs/node/blob/HEAD/glossary.md).
 
 #### Approval and request changes workflow