(fix): Add md-field for categoryDescription and fixed package.yaml(openebs) (#29)

* added categoryDescription as md-content, fixed package.yaml(openebs)

Signed-off-by: daitya109 <adikid1996@gmail.com>

charts/generic/pod-network-latency/pod-network-latency.chartserviceversion.yaml

@@ -10,8 +10,10 @@ metadata:
     support: https://slack.kubernetes.io/
 spec:
   displayName: pod-network-latency
-  categoryDescription: >
+  categoryDescription: |
     Pod-network-latency contains chaos to disrupt network connectivity of kubernetes pods. Experiments can inject random network delays on the app replica pods. 
+    - Causes flaky access to application replica by injecting network delay using pumba.
+    - The application pod should be healthy once chaos is stopped. Service-requests should be served despite chaos.
   keywords:
     - Kubernetes
     - Network