Update CONTRIBUTING.md

Co-authored-by: Mark Walker <[email protected]>

CONTRIBUTING.md

@@ -72,7 +72,7 @@ following [these instructions](https://docs.github.com/en/get-started/quickstart
 
 Once you have forked [broadinstitute/gatk-sv](https://github.com/broadinstitute/gatk-sv), 
 you need to download your fork to your computer so you can implement any changes. 
-This process is commonly known as _clone_ing a GitHub repository. You may follow 
+This process is commonly known as _cloning_ a GitHub repository. You may follow 
 [these instructions](https://docs.github.com/en/get-started/quickstart/fork-a-repo#cloning-your-forked-repository) 
 on cloning your fork of GATK-SV, or in a nutshell, you may run the following commands.