correct content_view_filter_rule examples

also point out that the cv filter needs to already exist

plugins/modules/content_view_filter_rule.py

@@ -118,6 +118,8 @@
 '''
 
 EXAMPLES = '''
+# the examples assume that the content view filters have been already created
+# e.g. by the theforeman.foreman.content_view_filter module
 
 - name: "Include errata by date"
   theforeman.foreman.content_view_filter_rule:
@@ -137,7 +139,7 @@
     end_date: "2022-05-25"
 
 - name: "Exclude csh versions 6.20 and older"
-  theforeman.foreman.content_view_filter:
+  theforeman.foreman.content_view_filter_rule:
     username: "admin"
     password: "changeme"
     server_url: "https://foreman.example.com"
@@ -148,7 +150,7 @@
     max_version: "6.20.00"
 
 - name: "Exclude csh version 6.23 due to example policy"
-  theforeman.foreman.content_view_filter:
+  theforeman.foreman.content_view_filter_rule:
     username: "admin"
     password: "changeme"
     server_url: "https://foreman.example.com"
@@ -159,7 +161,7 @@
     version: "6.23.00"
 
 - name: "Content View Filter Rule for 389"
-  content_view_filter_rule:
+  theforeman.foreman.content_view_filter_rule:
     username: "admin"
     password: "changeme"
     server_url: "https://foreman.example.com"