Add support email address to code of conduct (#14)

CODE_OF_CONDUCT.md

@@ -60,8 +60,7 @@ representative at an online or offline event.
 ## Enforcement
 
 Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported to the community leaders responsible for enforcement at
-[INSERT CONTACT METHOD].
+reported to the community leaders responsible for enforcement at <[email protected]>.
 All complaints will be reviewed and investigated promptly and fairly.
 
 All community leaders are obligated to respect the privacy and security of the
@@ -127,4 +126,3 @@ enforcement ladder](https://github.com/mozilla/diversity).
 For answers to common questions about this code of conduct, see the FAQ at
 https://www.contributor-covenant.org/faq. Translations are available at
 https://www.contributor-covenant.org/translations.
-