refactor(cassandra-chart): Updating the chart & csv of cassandra chart (#212)

Signed-off-by: shubhamchaudhary <shubham.chaudhary@mayadata.io>

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

@@ -7,7 +7,7 @@ metadata:
   annotations:
     categories: Cassandra
     vendor: CNCF
-    support: https://slack.kubernetes.io/
+    support: https://cassandra-slack.herokuapp.com
 spec:
   displayName: cassandra-pod-delete
   categoryDescription: |
@@ -32,7 +32,7 @@ spec:
     name: Mayadata
   links:
     - name: Source Code
-      url: https://github.com/litmuschaos/litmus/tree/master/experiments/cassandra/cassandra-pod_delete
+      url: https://github.com/litmuschaos/litmus/tree/master/experiments/cassandra/pod_delete
     - name: Documentation
       url: https://docs.litmuschaos.io/docs/cassandra-pod-delete/
     - name: Video

charts/cassandra/cassandra-pod-delete/experiment.yaml

@@ -91,6 +91,10 @@ spec:
     - name: RAMP_TIME
       value: ''
 
+    # provide the kill count
+    - name: KILL_COUNT
+      value: ''
+
     - name: FORCE
       value: ''
 

charts/cassandra/cassandra.chartserviceversion.yaml

@@ -32,12 +32,12 @@ spec:
     - name: Cassandra Website
       url: http://cassandra.apache.org/
     - name: Source Code
-      url: https://github.com/kubernetes/kubernetes
-    - name: Kubernetes Slack
-      url: https://slack.kubernetes.io/ 
+      url: https://github.com/apache/cassandra
+    - name: Cassandra Slack
+      url: https://cassandra-slack.herokuapp.com
     - name: Documentation
-      url: https://docs.litmuschaos.io/docs/chaoshub/#cassandra-chaos
+      url: http://cassandra.apache.org/doc/latest/
   icon:
-    - url: 
+    - url: https://raw.githubusercontent.com/litmuschaos/chaos-charts/master/charts/cassandra/icons/cassandra.png
       mediatype: image/png
   chaosexpcrdlink: https://raw.githubusercontent.com/litmuschaos/chaos-charts/master/charts/cassandra/experiments.yaml