message: Adds a note about c2c to Axom's quick start guide
diff: @@ -56,6 +56,7 @@ Library Dependencies
  Library Dependent Components Build system variable
  ================== ==================================== ======================
  `Conduit`_ Required: Sidre CONDUIT_DIR
  + `c2c`_ Optional C2C_DIR
  `HDF5`_ Optional: Sidre HDF5_DIR
  `Lua`_ Optional: Inlet LUA_DIR
  `MFEM`_ Optional: Quest MFEM_DIR
  @@ -65,6 +66,7 @@ Library Dependencies
  ================== ==================================== ======================
  .. _Conduit: https://llnl-conduit.readthedocs.io/en/latest
  +.. _c2c: https://rzlc.llnl.gov/c2c
  .. _HDF5: https://www.hdfgroup.org/solutions/hdf5/
  .. _Lua: https://www.lua.org/
  .. _MFEM: https://mfem.org/
  @@ -76,6 +78,9 @@ Each library dependency has a corresponding build system variable
  (with the suffix ``_DIR``) to supply the path to the library's installation directory.
  For example, ``hdf5`` has a corresponding variable ``HDF5_DIR``.
  +.. note::
  + Optional `c2c` library is currently only available for configurations on LLNL clusters.
  +
  Tool Dependencies
  """""""""""""""""
  