fixup example xbox username

connector/src/main/resources/config.yml

@@ -26,7 +26,7 @@ remote:
 ## if you are brave/stupid enough to put your Mojang account info into
 ## a config file
 #userAuths:
-#  bluekelp2: # MCPE/Xbox username
+#  bluerkelp2: # MCPE/Xbox username
 #    email: not_really_my_email_address_mr_minecrafter53267@gmail.com # Mojang account email address
 #    password: "this isn't really my password"
 #