Fix a link on git.md

JohnTitor · Joshua Nelson · commit 7f9c36b6a9f1 · 2020-10-15T23:11:33.000-04:00
diff --git a/src/git.md b/src/git.md
@@ -106,7 +106,7 @@ Caused by:
 ```
 it's not anything you did wrong. There is a workaround at [#77620].
 
-[#77620](https://github.com/rust-lang/rust/issues/77620#issuecomment-705228229)
+[#77620]: https://github.com/rust-lang/rust/issues/77620#issuecomment-705228229
 
 ## Conflicts
 
