Polish based on feedback by @sbrannen

Fixes #1064.

Author: marcphilipp

documentation/src/docs/asciidoc/overview.adoc

@@ -119,7 +119,8 @@ Snapshot artifacts are deployed to Sonatype's {snapshot-repo}[snapshots reposito
 [[dependency-metadata-optional-dependencies]]
 ==== Optional Dependencies
 
-All of the above artifacts have an _optional_ dependency to the following _@API Guardian_ JAR.
+All of the above artifacts have an `optional` dependency in their published Maven POMs on
+the following _@API Guardian_ JAR.
 
 * *Group ID*: `org.apiguardian`
 * *Artifact ID*: `apiguardian-api`

documentation/src/docs/asciidoc/release-notes-5.0.1.adoc

@@ -12,8 +12,8 @@ on GitHub.
 [[release-notes-5.0.1-overall-improvements]]
 ==== Overall Improvements
 
-* All artifacts now have an _optional_ instead of a mandatory dependency to the
-  _@API Guardian_ JAR.
+* All artifacts now have an `optional` instead of a mandatory dependency on the
+  _@API Guardian_ JAR in their published Maven POMs.
 
 
 [[release-notes-5.0.1-junit-platform]]