What is the difference between, Superset docker image edge and the regular release images?\n\nEdge: <https://hub.docker.com/layers/amancevice/superset/edge/images/sha256-02605fb6784bd36e30b34844c4cb469c6ffc9a9a79f6723d9460df4b71ee7060?context=explore>\n\n0.37.2:<https://hub.docker.com/layers/amancevice/superset/0.37.2/images/sha256-0036adb5d313cd8dd1263a843e501380162c57bf70c616913d1613c390a00950?context=explore>\n\nI am looking for the master branch image. Any help with that?