updating build template

configs/docker/build/build.sh

 cp ../../conda/conda-env-py3EWS-withbuilds.yml .;
 #   note that if you want to build an image that runs with your credentials, override the following variables when
-#   building the image:
+#   building the image, e.g. for user 'lb584' with GID and UID 1001:
 #   sudo docker build -t ews_coordinator --build-arg GNAME=lb584 --build-arg UNAME=lb584
 #   --build-arg UID=1001 --build-arg GID=1001 -f Dockerfile .
 #   the docker container will run commands using this user and group, and will have access to the relevant filesystems
 #   that are mounted. If the default command is run, the user credentials are set to be those of the Cam group server
 
-##this is yet another comment that is in the new lb584 branch
 sudo docker build -t ews_coordinator -f Dockerfile .;
 rm -v conda-env-py3EWS-withbuilds.yml;