Apply suggestion from @hugovk

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

Author: willingc

getting-started/git-boot-camp.rst

@@ -466,7 +466,7 @@ Or set up a Git alias:
 
    .. code-block:: shell
 
-      $ git config --global alias.pr '!sh -c "git fetch upstream pull/${1}/head:pr_${1} && git switch pr_${1}" -'
+      git config --global alias.pr '!sh -c "git fetch upstream pull/${1}/head:pr_${1} && git switch pr_${1}" -'
 
 .. tab:: Windows