Minor dashboard udpates (#664)

Author: tmiddlet2666

dashboards/grafana/grpc-proxy-summary-dashboard.json

@@ -56,7 +56,7 @@
           "showLineNumbers": false,
           "showMiniMap": false
         },
-        "content": "<center><h3>gRPC Proxy Summary/h3></center>",
+        "content": "<center><h3>gRPC Proxy Summary</h3></center>",
         "mode": "html"
       },
       "pluginVersion": "10.0.13",

dashboards/grafana/topic-details-dashboard.json

@@ -722,8 +722,8 @@
                 "value": [
                   {
                     "targetBlank": false,
-                    "title": "Drill down for subscriber details for ${__data.fields[2]}",
-                    "url": " /d/coh-subscriber-details?var-Subscriber=${__data.fields[2]}&$__all_variables"
+                    "title": "Drill down for subscriber details for ${__data.fields[1]}",
+                    "url": " /d/coh-subscriber-details?var-Subscriber=${__data.fields[1]}&$__all_variables"
                   }
                 ]
               },
@@ -1815,4 +1815,4 @@
   "uid": "coh-topic-details",
   "version": 8,
   "weekStart": ""
-}
+}