We have a few orphaned RST pages in the documentation tree -- these are files that are in our source tree, but are not linked to by any table of contents within the documentation.
It's possible that some of these were started but not completed, or obsoleted but not fully removed. I've looked up the last few authors of each file -- can you help me triage them?
faq/environment_variables.rst (John, Darren)
mpl_toolkits/axes_grid/index.rst (Jae-Joon, Paul)
Science Software Branch
Space Telescope Science Institute
Baltimore, Maryland, USA