Change default port to 8080 and update script

Dockerfile

@@ -55,9 +55,4 @@ FROM heartexlabs/label-studio:hf-latest
 #
 ################################################################################
 
-# Wrap Label Studio to set the space hostname and pass through arguments
-RUN echo "export LABEL_STUDIO_HOST=\$SPACE_HOST; echo 'starting label studio'; label-studio \$@" > start.sh
-RUN chmod +x /label-studio/start.sh
-
-# Start Label Studio in the Hugging Face Space on port 7860
-CMD ["/label-studio/start.sh", "-p", "7860"]
+CMD exec label-studio --host=$SPACE_HOST

README.md

@@ -6,6 +6,7 @@ colorTo: yellow
 sdk: docker
 pinned: true
 license: apache-2.0
+app_port: 8080
 ---
 <img src="https://user-images.githubusercontent.com/12534576/192582340-4c9e4401-1fe6-4dbb-95bb-fdbba5493f61.png"/>