Fix markdown links in rst files (#34488)

1 files changed, 6 insertions, 4 deletions

diff --git a/lib/spack/docs/packaging_guide.rst b/lib/spack/docs/packaging_guide.rst
index ea5cc347ce..27705b3dbf 100644
--- a/lib/spack/docs/packaging_guide.rst
+++ b/lib/spack/docs/packaging_guide.rst
@@ -2397,13 +2397,15 @@ this because uninstalling the dependency would break the package.
 
 ``build``, ``link``, and ``run`` dependencies all affect the hash of Spack
 packages (along with ``sha256`` sums of patches and archives used to build the
-package, and a [canonical hash](https://github.com/spack/spack/pull/28156) of
+package, and a `canonical hash <https://github.com/spack/spack/pull/28156>`_ of
 the ``package.py`` recipes). ``test`` dependencies do not affect the package
 hash, as they are only used to construct a test environment *after* building and
 installing a given package installation. Older versions of Spack did not include
-build dependencies in the hash, but this has been
-[fixed](https://github.com/spack/spack/pull/28504) as of [Spack
-``v0.18``](https://github.com/spack/spack/releases/tag/v0.18.0)
+build dependencies in the hash, but this has been 
+`fixed <https://github.com/spack/spack/pull/28504>`_ as of |Spack v0.18|_.
+
+.. |Spack v0.18| replace:: Spack ``v0.18``
+.. _Spack v0.18: https://github.com/spack/spack/releases/tag/v0.18.0
 
 If the dependency type is not specified, Spack uses a default of
 ``('build', 'link')``. This is the common case for compiler languages.