Code of Conduct: note who receives the CoC mails

• Make clear who will receive e-mails sent to the CoC address.
• Add a list of changes on top, comparing to the standard CoC this is based on.

content/page/coc.md

 title: "Code of Conduct"
 ---
+You are reading the Contributor Covenant 2.1 with the following changes:
+
+* Replaced the [enforcement](#enforcement) e-mail address
+* Listed who receives these e-mails
 
 ## Our Pledge
 
@@ -64,6 +68,9 @@ reported to the community leaders responsible for enforcement by emailing
 **<help@postmarketos.org>**.
 All complaints will be reviewed and investigated promptly and fairly.
 
+*E-mails sent to that address go to the CoC team ({{@ollieparanoid}},
+{{@lucaweiss}}, {{@caleb}}, {{@PureTryOut}}).*
+
 All community leaders are obligated to respect the privacy and security of the
 reporter of any incident.