add video link (#124)

Signed-off-by: aditya109 <adikid1996@gmail.com>

charts/generic/disk-fill/disk-fill.chartserviceversion.yaml

@@ -35,6 +35,8 @@ spec:
       url: https://github.com/litmuschaos/litmus/tree/master/experiments/generic/disk_fill
     - name: Documentation
       url: https://docs.litmuschaos.io/docs/disk-fill/
+    - name: Video
+      url:
   icon:
     - url: 
       mediatype: ""