Add email address. Closes #623

CODE-OF-CONDUCT.md

 when an individual is representing the project or its community.
 
 Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported by contacting a project maintainer at [INSERT EMAIL ADDRESS]. All
+reported by contacting a project maintainer at awesome-php@josediazgonzalez.com. All
 complaints will be reviewed and investigated and will result in a response that
 is deemed necessary and appropriate to the circumstances. Maintainers are
 obligated to maintain confidentiality with regard to the reporter of an