Cosmetic edit

Dockerfile

@@ -11,12 +11,12 @@ ARG CUDA_VERSION
 ARG NVIDIA_VISIBLE_DEVICES=all
 ARG DEBIAN_FRONTEND=noninteractive
 ENV NVIDIA_DRIVER_CAPABILITIES all
+ENV DISPLAY :0
 ENV PULSE_SERVER 127.0.0.1:4713
 ENV XDG_RUNTIME_DIR /tmp
 
 # Default environment variables (password is "mypasswd")
 ENV TZ UTC
-ENV DISPLAY :0
 ENV SIZEW 1920
 ENV SIZEH 1080
 ENV REFRESH 60