Update _index.md (layer5io#97)

Signed-off-by: Varad Gupta <114755221+vr-varad@users.noreply.github.com>

Author: vr-varad

content/learning-paths/11111111-1111-1111-1111-111111111111/mastering-service-meshes-for-developers/_index.md

@@ -7,5 +7,5 @@ banner: "images/service-mesh.svg"
 id: "c2622a7c-cdd0-4a1b-81b9-cd13df002a1f"
 tags: [service-mesh]
 categories: "meshery"
-level: "advanced"
+level: "intermediate"
 ---