Refine git add to only include README.md and clarify documentation

Co-authored-by: thomasturrell <1552612+thomasturrell@users.noreply.github.com>

Author: Copilot

.github/workflows/manual-release.yml

@@ -198,8 +198,8 @@ jobs:
             echo "Documentation examples updated with release version"
             
             # Amend the release commit created by release:prepare to include doc updates
-            # Add all modified files that the script may have updated
-            git add -u
+            # Only add README.md since that's what the script updates
+            git add README.md
             git commit --amend --no-edit
             
             # Update the tag to point to the amended commit

RELEASING.md

@@ -118,7 +118,7 @@ Result:
 1. Check the [Actions tab](https://github.com/BerryCloud/xapi-java/actions) to ensure the workflow completed successfully
    - The workflow will show a summary of the release including version, tag, and status
 2. Verify the target branch (e.g., `main`) has two new commits:
-   - Release commit: `[maven-release-plugin] prepare release vX.Y.Z` (includes documentation updates)
+   - Release commit: `[maven-release-plugin] prepare release vX.Y.Z` (amended to include documentation updates)
    - Development commit: `[maven-release-plugin] prepare for next development iteration`
 3. Verify the GitHub Release was published at the [Releases page](https://github.com/BerryCloud/xapi-java/releases)
    - The release should no longer be in draft state