docs: Fixing the verbatim in versioning.rst file.

Signed-off-by: Tim 'mithro' Ansell <tansell@google.com>
diff --git a/docs/versioning.rst b/docs/versioning.rst
index 294e216..503f8b3 100644
--- a/docs/versioning.rst
+++ b/docs/versioning.rst
@@ -1,30 +1,35 @@
 Version Number Format
 ---------------------
 
+
+
 Version numbers for both the PDK and the supplied libraries are fully specified by a 3-digit version number followed by a git commit count and a git commit short hash.
 
-The 3-digit-number will be tagged in the associated git repository as `vX.Y.Z` and the fully specified value can be found by running `git describe` tool inside the correct git repository.
+The 3-digit-number will be tagged in the associated git repository as ``vX.Y.Z`` and the fully specified value can be found by running |git-describe|_ tool inside the correct git repository.
 
-The version number is broken down as `vX.Y.Z-AAA-gHHHHH`;
+.. |git-describe| replace:: ``git describe``
+.. _git-describe: https://git-scm.com/docs/git-describe
 
-- The letter `v`.
+The version number is broken down as ``vX.Y.Z-AAA-gHHHHH``;
 
-- `X` = The "Milestone Release" Number
+* The letter ``v``.
 
-   - **0** indicates **"alpha"** level. The IP has not undergone full qualification. Parts of the IP may be immature and untested.
+* ``X`` = The "Milestone Release" Number
 
-   - **1** indicates **"beta"** level. The IP has undergone qualification testing but has not been hardware verified.
+  * **0** indicates **"alpha"** level. The IP has **not** undergone full qualification. Parts of the IP **may be immature and untested**.
 
-   - **2** indicates **production** level. The IP has passed qualification testing and has been hardware verified.
+  * **1** indicates **"beta"** level. The IP has undergone qualification testing but has **not** been hardware verified.
 
-- `Y` = The "Major Release" Number
+  * **2** indicates **production** level. The IP has passed qualification testing and has been hardware verified.
 
-- `Z` = The "Minor Release" Number
+* ``Y`` = The "Major Release" Number
 
-- A single hyphen character `-`
+* ``Z`` = The "Minor Release" Number
 
-- `AAA` = The git commit count since the version number was tagged.
+* A single hyphen character ``-``
 
-- A single hyphen character followed by the letter g `-g`
+* ``AAA`` = The `git commit count <https://git-scm.com/docs/git-describe#_examples>`_ since the version number was tagged.
 
-- `HHHH` = A git commit short hash which uniquely identifies a specific git commit inside the associated git repository.
+* A single hyphen character followed by the letter g ``-g``
+
+* ``HHHH`` = A `git commit short hash <https://git-scm.com/book/en/v2/Git-Tools-Revision-Selection#_short_sha_1>`_ which uniquely identifies a specific git commit inside the associated git repository.