Update gitlab-commit_and_push.ipynb

gitlab-commit_and_push.ipynb

@@ -35,7 +35,7 @@
    "metadata": {},
    "source": [
     "Choose branch you would like to work on. (syntax: git checkout branch_name) \n",
-    "If you need to create a new branch, type this to create a branch and switch to it: git checkout -b branch_name"
+    "If you need to create a new branch, type this to create a branch and switch to it: `git checkout -b branch_name`"
    ]
   },
   {