Merge pull request #33629 from mjpytlak/bz1973057

BZ1973057: Removed erroneous hyphen from Yaml example

Author: mburke5678

modules/olm-injecting-custom-ca.adoc

@@ -48,7 +48,7 @@ spec:
   package: etcd
   channel: alpha
   config: <1>
-  - selector:
+    selector:
       matchLabels:
         <labels_for_pods> <2>
     volumes: <3>