Added the Trusted Contributor notice

You can customize this slightly to say "Puppet Community and the Sales
Engineers team" or similar if you like, as long as you don't change the
gist of the supportability status.

README.md

@@ -1,5 +1,9 @@
 # puppetlabs-patching_as_code
 
+> This module is supported by the Puppet community. We expect it to be of the same high
+> quality as our own Supported modules, but it does not qualify for Puppet Support plans.
+> See the `CODEOWNERS` file for usernames of the maintainers.
+
 #### Table of Contents
 
 - [Description](#description)
@@ -274,7 +278,7 @@ Here's another example, this time for a pre-patch powershell command on Windows:
 ```yaml
 patching_as_code::pre_patch_commands:
   shutdown SQL server:
-    command: Stop-Service MSSQLSERVER -Force 
+    command: Stop-Service MSSQLSERVER -Force
     provider: powershell
 ```
 As you can see, it's just like defining `Exec` resources.