message: Added more description to misc tasks.
diff: @@ -52,9 +52,10 @@ reviewers to check over your changes.
  Axom Third-party Library (TPL) Dependency Installation and Update
  ========================================================================
  -Axom dependencies are grouped into three categories: Git submodules,
  -system TPL dependencies, other TPL libraries. The following sections
  -describe how to install and update these dependencies for Axom.
  +Axom dependencies are grouped into four categories: Git submodules,
  +built-in TPLs in the Axom source tree, system-level TPLs, and other
  +TPL libraries. The following sections describe how to install and update
  +these dependencies for Axom.
  Git submodules
  --------------
  @@ -77,8 +78,13 @@ its directory in Axom and check out a new version. If a version is intended
  to be changed in the Axom repo, make the version change on a branch and
  submit a GitHub pull request as you would do for other software changes.
  -TPLs
  -----
  +Built-in TPLs
  +-------------
  +
  +**TODO: describe how to change versions here...**
  +
  +TPLs (system-level and others)
  +------------------------------
  The following instructions describe how to install local copies of Axom
  TPLs on Livermore Computing (LC) platforms. Typically, this process is
  @@ -122,14 +128,23 @@ other Axom developers to use, to use in Axom CI testing, etc.
  where ``local/install/path`` is a directory location where you want the
  libraries to be installed.
  - This will do a full installation of the TPLs, which you can use to check
  - that the the correct new version is installed and works.
  + The script will do a full installation of all TPLs for the plaform you
  + are running on. It will output whether the TPL install succeeded and,
  + subsequently, whether an Axom build against the TPL install succeeded.
  +
  + Running the script produces new host-config files (i.e., CMake cache files)
  + that you can use to build and test Axom with the installation, if issues
  + arise. The generated host-config files will be located in the top-level Axom
  + directory of your local clone of the repo. If any changes to Axom code are
  + needed to work with the TPL update(s), make the changes and test them.
  +
  + .. note :: You can build a subset of TPLs for a platform, by passing Spack
  + spec arguments to the Python script. For example,
  +
  + $ ./scripts/llnl_scripts/build_tpls.py --spec clang@10.0.0~cpp14+devtools+mfem+c2c ...
  - Running the command above also produces new host-config files (i.e.,
  - CMake cache files) that you use to build and test Axom with the installation.
  - These new host-config files will be located in the top-level Axom directory
  - of your local clone of the repo. If any changes to Axom code are needed
  - to work with the TPL update(s), make the changes and test them.
  + will build the TPLs for the clang 10.0.0 compiler. Please see the
  + ``scripts/spack/specs.json`` file for available specs.
  #. When you are confident that everything is correct, log in as user
  ``atk`` to each of the machines named in Axom's standard host-configs and run
  