Small fixtures

docs/meta/edit_this_site.rst

 Edit this site!
 ===============
 
+`eic.phy.anl.gov/ip6/ <https://eic.phy.anl.gov/ip6/>`_
+
 This site is open to everyone. Users are encouraged to contribute to this documentation! 
 If you would like to add/edit the information on this site - you are welcome to do this! 
 

docs/overview/containers.rst

 Containers
 ==========
 
+`Containers repository <https://eicweb.phy.anl.gov/containers>`_
+
 Installation
 ------------
 

docs/overview/plan.rst

-IP6 SWG Plan
-============
+IP6 Software Plan
+=================
 
 .. figure:: ../_images/2021-04-07_software_plan.png
    :alt: Software plan