chore(node-name): Adding app-node in node cpu/memory hog chart (#317)

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

charts/generic/node-memory-hog/engine.yaml

@@ -31,3 +31,7 @@ spec:
             ## default value 90
             - name: MEMORY_PERCENTAGE
               value: '90'
+            
+             # ENTER THE NAME OF THE APPLICATION NODE
+            - name: APP_NODE
+              value: ''

charts/generic/node-memory-hog/experiment.yaml

@@ -51,7 +51,11 @@ spec:
     ## specify the size as percent of total available memory (in percentage)
     ## Default value "90"
     - name: MEMORY_PERCENTAGE
-      value: '90'        
+      value: '90'    
+
+     # ENTER THE NAME OF THE APPLICATION NODE
+    - name: APP_NODE
+      value: ''    
 
     # Period to wait before and after injection of chaos in sec
     - name: RAMP_TIME