Update Dockerfile

Dockerfile

@@ -51,7 +51,7 @@ ENV LABEL_STUDIO_DISABLE_SIGNUP_WITHOUT_LINK=true
 # By default, persistent storage is mounted to /data. In your Space settings,
 # set the following variables:
 #
-LABEL_STUDIO_BASE_DATA_DIR=/data
+#LABEL_STUDIO_BASE_DATA_DIR=/data
 ENV STORAGE_PERSISTENCE=1
 #
 # Your space will restart. NOTE: if you have existing settings and data,