hugo, base the image tag on the branch being used, change the ports to be in the env file.

Config/HugoExample/example.env

@@ -17,9 +17,11 @@ BRANCH=prod
 
 # Whether to start NGINX
 PROD=YES
+PROD_PORT=8013
 
 # Whether to start Hugo Server
 DEV=NO
+DEV_PORT=1380
 
 #
 ## Resources ##