(docs) Update anchor on Agent release

[corbob]

Description Of Changes

Update the anchor on the Agent release notes to have a v in it.

Motivation and Context

Technically speaking, anchors can't start with numbers. And also consistency.

Testing

• I have previewed these changes using the Docker Container or another method before submitting this pull request.

Change Types Made

• Minor documentation fix (typos etc.).
• Major documentation change (refactoring, reformatting or adding documentation to existing page).
• New documentation page added.
• The change I have made should have a video added, and I have raised an issue for this.
  • Issue #

Change Checklist

• Requires a change to menu structure (top or left-hand side)/
• Menu structure has been updated
• Images added to the img repository?
  • PR -
• All items are complete on the Definition of Done.

Related Issue

N/A