Add image for Governance and Standards capabilities

Added an image to illustrate Governance and Standards capabilities.

Author: MarcClaxton

governance-standards.html

@@ -232,6 +232,11 @@ <h2 class="govuk-heading-l">Overview</h2>
 
             <h2 class="govuk-heading-l">Key Capabilities</h2>
 
+            <!-- IMAGE - Place here -->
+            <figure class="govuk-!-margin-bottom-6">
+                <img src="images/Governance_Standards.png" alt="Governance and Standards key capabilities diagram" class="govuk-!-width-full">
+            </figure>
+            
             <h3 class="govuk-heading-m">Citizen-facing services</h3>
             <p class="govuk-body">Digital services that enable citizens to complete transactions, access information, and interact with government departments online.</p>