Change the git command
It appears that the incorrect git command was used in the docs.
I am suggesting the corrected git clone instead of the git checkout
@@ -120,7 +120,7 @@ The section is inspired by [this](https://notes.elmiko.dev/2020/08/18/tips-exper
Prerequisites:
```
-git checkout github.com/openshift/$repository_name
+git clone github.com/openshift/$repository_name
cd $repository_name
```
