clarifying pip install command when astroquery is already installed
@@ -31,6 +31,10 @@ that a release will be instantaniously available after each set of changes
made to the code.
The latest version of astroquery can be pip installed.
+\*Note that if an environment already has a release version of astroquery installed
+when this command is run, it will not install the latest release.
+In this case astroquery will need to be uninstalled before the pip command is run.
+
.. code-block:: bash
$ pip install --pre astroquery
