Fix my discord username

Author: dhalbert

CODE_OF_CONDUCT.md

@@ -76,7 +76,7 @@ In any situation, you may send an email to <[email protected]>.
 On the Adafruit Discord, you may send an open message from any channel
 to all Community Moderators by tagging @community moderators. You may 
 also send an open message from any channel, or a direct message to 
-@kattni#1507, @tannewt#4653, @Dan Halbert#1614, @cater#2442, 
+@kattni#1507, @tannewt#4653, @danh#1614, @cater#2442, 
 @sommersoft#0222, @Mr. Certainly#0472 or @Andon#8175.
 
 Email and direct message reports will be kept confidential.