fixup!: add cd ../.. to code upgrade instructions

Author: Joe Previte

docs/CONTRIBUTING.md

@@ -96,7 +96,7 @@ re-apply the patches.
 ### Version updates to Code
 
 1. Update the `lib/vscode` submodule to the desired upstream version branch.
-   1. `cd lib/vscode && git checkout release/1.66`
+   1. `cd lib/vscode && git checkout release/1.66 && cd ../..`
    2. `git add lib && git commit -m "chore: update Code"`
 2. Apply the patches (`quilt push -a`) or restore your stashed changes. At this
    stage you may need to resolve conflicts. For example use `quilt push -f`,