Merge pull request #1 from JTM-UofL/JTM-UofL-patch-1

Update HACKING.md

Author: JTM-UofL

HACKING.md

@@ -12,5 +12,5 @@ Please see the content of this file in its new location:
 https://docs.open-mpi.org/en/main/developers/
 
 Additionally, see
-https://docs.open-mpi.org/en/main/developers/prerequisites.html#sphinx
+https://docs.open-mpi.org/en/main/developers/sphinx.html
 if you want to edit and build the documentation locally.