message: small clarifications
diff: @@ -49,6 +49,7 @@ traditional sense. To update one of these packages in Axom, simply go into
  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.
  +More info on :ref:`toolkitbuild-label`.
  Built-in TPLs
  -------------
  @@ -81,9 +82,9 @@ instructions on how to update a built-in TPL are as follows:
  be able to directly apply the patch but it will give you the general idea
  on what needs to be applied. For example, the namespace update mentioned above.
  -#. Ensure that the build and tests still pass. More info on testing :ref:`testing-label`.
  +#. Ensure that the build and tests still pass. More info on :ref:`testing-label`.
  -#. Follow the normal pull request work flow. More info on PRs :ref:`pullrequest-label`.
  +#. Follow the normal pull request work flow. More info on :ref:`pullrequest-label`.
  TPLs (system-level and external libraries)
  @@ -150,7 +151,7 @@ other Axom developers to use, to use in Axom CI testing, etc.
  ``scripts/spack/specs.json`` file for available specs.
  #. When you are confident that everything is correct, become the service user
  - ``atk``, which requires a certain level of permission, on to each of the
  + ``atk``, which requires a certain level of permission, on each of the
  machines named in Axom's standard host-configs. Run the following script
  which will build all specs for the machine you are on:
  