Update install.rst

Fixed install command to be consistent

docs/getting_started/install.rst

@@ -11,4 +11,4 @@ along with a fully built server.
 
     pip install burr[start]
 
-This will give you tools to visualize, track, and interact with the UI. Note, if you're using ``zsh``, you'll need to add quotes around the install target, (``pip install "burr[learn]"``).
+This will give you tools to visualize, track, and interact with the UI. Note, if you're using ``zsh``, you'll need to add quotes around the install target, (``pip install "burr[start]"``).