chore: Fix ChaosHub for Litmus 3.0 (#612)

* fixes broken links, adds missing icons and updates readme

Signed-off-by: neelanjan00 <neelanjan.manna@harness.io>

faults/aws/aws.chartserviceversion.yaml

@@ -54,5 +54,5 @@ spec:
     - name: Documentation
       url: "https://litmuschaos.github.io/litmus/experiments/categories/contents/#aws"
   icon:
-    - url: https://raw.githubusercontent.com/litmuschaos/charthub.litmuschaos.io/master/public/litmus.ico
+    - url: https://github.com/litmuschaos/chaos-charts/blob/master/faults/aws/icons/aws.png
       mediatype: image/png

faults/azure/azure.chartserviceversion.yaml

@@ -35,5 +35,5 @@ spec:
     - name: Documentation
       url: "https://litmuschaos.github.io/litmus/experiments/categories/contents/#azure"
   icon:
-    - url: https://raw.githubusercontent.com/litmuschaos/charthub.litmuschaos.io/master/public/litmus.ico
+    - url: https://github.com/litmuschaos/chaos-charts/blob/master/faults/azure/icons/azure.png
       mediatype: image/png

faults/gcp/gcp.chartserviceversion.yaml

@@ -41,5 +41,5 @@ spec:
     - name: Documentation
       url: "https://litmuschaos.github.io/litmus/experiments/categories/contents/#gcp"
   icon:
-    - url: https://raw.githubusercontent.com/litmuschaos/charthub.litmuschaos.io/master/public/litmus.ico
+    - url: https://github.com/litmuschaos/chaos-charts/blob/master/faults/gcp/icons/gcp.png
       mediatype: image/png

faults/kubernetes/kubernetes.chartserviceversion.yaml

@@ -119,5 +119,5 @@ spec:
     - name: Documentation
       url: https://litmuschaos.github.io/litmus/experiments/categories/contents/#kubernetes
   icon:
-    - url: https://raw.githubusercontent.com/litmuschaos/charthub.litmuschaos.io/master/public/litmus.ico
+    - url: https://github.com/litmuschaos/chaos-charts/blob/master/faults/kubernetes/icons/kubernetes.png
       mediatype: image/png

faults/spring-boot/spring-boot.chartserviceversion.yaml

@@ -45,5 +45,5 @@ spec:
     - name: Documentation
       url: https://spring.io/projects/spring-boot
   icon:
-    - url: https://raw.githubusercontent.com/litmuschaos/chaos-charts/master/charts/spring-boot/icons/spring-boot.png
+    - url: https://github.com/litmuschaos/chaos-charts/blob/master/faults/spring-boot/icons/spring-boot.png
       mediatype: image/png

faults/vmware/vmware.chartserviceversion.yaml

@@ -34,5 +34,5 @@ spec:
     - name: Documentation
       url: "https://litmuschaos.github.io/litmus/experiments/categories/contents/#vmware"
   icon:
-    - url: https://raw.githubusercontent.com/litmuschaos/charthub.litmuschaos.io/master/public/litmus.ico
+    - url: https://github.com/litmuschaos/chaos-charts/blob/master/faults/vmware/icons/vmware.png
       mediatype: image/png