Chore(add): Add imagePullPolicy at missing places in experiments CR (#413)

Signed-off-by: udit <udit.gaurav@mayadata.io>

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

@@ -27,10 +27,10 @@ spec:
             - name: TOTAL_CHAOS_DURATION
               value: '120'
 
-            ## specify the size as percent of total available memory default value is 30
+            ## Specify the size as percent of total node capacity Ex: '30'
             ## Note: For consuming memory in mebibytes change the variable to MEMORY_CONSUMPTION_MEBIBYTES
             - name: MEMORY_CONSUMPTION_PERCENTAGE
-              value: ''
+              value: '30'
             
             # ENTER THE COMMA SEPARATED TARGET NODES NAME
             - name: TARGET_NODES

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

@@ -54,12 +54,13 @@ spec:
     - name: TOTAL_CHAOS_DURATION
       value: '120'
 
-    ## specify the size as percent of total available memory Ex: '30'
-    ## NOTE: for selecting this option MEMORY_CONSUMPTION_MEBIBYTES should be empty
+    ## Specify the size as percent of total node capacity Ex: '30'
+    ## NOTE: for selecting this option keep MEMORY_CONSUMPTION_MEBIBYTES empty
     - name: MEMORY_CONSUMPTION_PERCENTAGE
       value: ''
       
-    ## specify the memory size to consume in mebibytes
+    ## Specify the amount of memory to be consumed in mebibytes
+    ## NOTE: for selecting this option keep MEMORY_CONSUMPTION_PERCENTAGE empty
     - name: MEMORY_CONSUMPTION_MEBIBYTES
       value: ''