message: ENH: point axom related links to readthedocs
diff: .. _LLNL: https://www.llnl.gov/
  .. _Umpire: https://umpire.readthedocs.io/en/develop/
  .. _Mint Doxygen API Documentation: https://lc.llnl.gov/axom/docs/doxygen/axom_doxygen/html/classaxom_1_1mint_1_1Mesh.html
  -.. _Axom Quick Start Guide: https://lc.llnl.gov/axom/docs/sphinx/quickstart_guide_docs/html/index.html
  +.. _Axom Quick Start Guide: https://axom.readthedocs.io/en/develop/docs/sphinx/quickstart_guide/index.html
  .. _Conduit: https://llnl-conduit.readthedocs.io/en/latest/index.html
  .. _Blueprint: https://llnl-conduit.readthedocs.io/en/latest/blueprint.html
  .. _RAJA: https://raja.readthedocs.io/en/master/index.html
  -.. _Axom Toolkit: https://lc.llnl.gov/axom
  -.. _Sidre: https://lc.llnl.gov/axom/docs/sphinx/sidre_docs/html/index.html
  +.. _Axom Toolkit: https://axom.readthedocs.io/en/develop/
  +.. _Sidre: https://axom.readthedocs.io/en/develop/axom/sidre/docs/sphinx/index.html
  .. _WCI: https://wci.llnl.gov/
  .. _WSC: https://wci.llnl.gov/about-us/weapon-simulation-and-computing
  .. _CGNS: https://cgns.github.io/
  