Added docs link in chaos experiments (#77)

* Added docs field in chaos experiments

Signed-off-by: Amit Bhatt <amitbhatt818@gmail.com>

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

@@ -36,6 +36,8 @@ spec:
       url: https://kubernetes.io
     - name: Source Code
       url: https://github.com/litmuschaos/litmus/tree/master/experiments/generic
+    - name: Docs
+      url: https://docs.litmuschaos.io/docs/disk-loss/
   icon:
     - url: 
       mediatype: ""