setting UID for docker container

small change

might be just my docker setup, but all files created by the container were owned by root ... and I didn't like it :D

contribute.sh

@@ -32,4 +32,4 @@ fi
 # launch the docker file
 cmd="python contribute.py --date=\"$parameterDate\" --name=\"$parameterName\""
 
-docker run -p $dockerPort:$dockerPort --user $UID:$UID -it -v $(pwd)/:/presentation $dockerImg /bin/bash -c "$cmd"
+docker run -p $dockerPort:$dockerPort --user $(id -u):$(id -g) -it -v $(pwd)/:/presentation $dockerImg /bin/bash -c "$cmd"