update image mode title

Author: ShaunaDiaz

_topic_maps/_topic_map_ms.yml

@@ -78,7 +78,7 @@ Topics:
 - Name: Embedding in a RHEL for Edge image for offline use
   File: microshift-embed-in-rpm-ostree-offline-use
 ---
-Name: Installing with RHEL image mode
+Name: Installing with image mode for RHEL
 Dir: microshift_install_bootc
 Distros: microshift
 Topics: