Merge pull request #49190 from mburke5678/nodes-fix-custom-scaler-yaml

GH49038: Fix YAML error in custom autoscaler

Author: mburke5678

modules/nodes-pods-autoscaling-custom-creating-job.adoc

@@ -42,7 +42,7 @@ spec:
   pollingInterval: 30 <7>
   successfulJobsHistoryLimit: 5 <8>
   failedJobsHistoryLimit: 5 <9>
-  envSourceContainerName <10>
+  envSourceContainerName: <10>
   rolloutStrategy: gradual <11>
   scalingStrategy: <12>
     strategy: "custom"