Adding video link to the coredns experiment (#180)

Signed-off-by: Raj <raj.das@mayadata.io>

charts/coredns/coredns-pod-delete/coredns-pod-delete.chartserviceversion.yaml

@@ -34,5 +34,5 @@ spec:
     - name: Documentation
       url: https://docs.litmuschaos.io/docs/coredns-pod-delete/
     - name: Video
-      url:
+      url: https://www.youtube.com/watch?v=pwo5idKW7q8
   chaosexpcrdlink: https://raw.githubusercontent.com/litmuchaos/chaos-charts/master/charts/coredns/coredns-pod-delete/experiment.yaml

charts/coredns/experiments.yaml

@@ -55,6 +55,4 @@ spec:
       value: ''    
     labels:
       name: coredns-pod-delete
-
 ---
-