[prometheus-adapter] Fix metrics API in README (#5503)

Signed-off-by: Kingdon B <kingdon@urmanac.com>

Author: kingdonb

charts/prometheus-adapter/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: prometheus-adapter
-version: 4.14.0
+version: 4.14.1
 appVersion: v0.12.0
 description: A Helm chart for k8s prometheus adapter
 home: https://github.com/kubernetes-sigs/prometheus-adapter

charts/prometheus-adapter/README.md

@@ -136,15 +136,15 @@ rules:
       containerLabel: container
     memory:
       containerQuery: |
-        sum by (<<.GroupBy>>) (
+        round(sum by (<<.GroupBy>>) (
           avg_over_time(container_memory_working_set_bytes{container!="",<<.LabelMatchers>>}[3m])
-        )
+        ))
       nodeQuery: |
-        sum by (<<.GroupBy>>) (
+        round(sum by (<<.GroupBy>>) (
           avg_over_time(node_memory_MemTotal_bytes{<<.LabelMatchers>>}[3m])
           -
           avg_over_time(node_memory_MemAvailable_bytes{<<.LabelMatchers>>}[3m])
-        )
+        ))
       resources:
         overrides:
           node: