fix deploy start error

Dockerfile

@@ -2,4 +2,23 @@ FROM heartexlabs/label-studio:hf-latest
 
 ENV LABEL_STUDIO_DISABLE_SIGNUP_WITHOUT_LINK=true
 
-ENV STORAGE_PERSISTENCE=1
+################################################################################
+#
+# How to Enable Persistent Storage for Label Studio in Hugging Face Spaces
+# ------------------------------------------------------------------------
+#
+# By default this space stores all project configuration and data annotations
+# in local storage with sqlite. If the space is reset, all configuration and
+# annotation data in the space will be lost. You can enable configuration
+# persistence through one of two methods:
+#
+# 1) Enabling Hugging Face Persistent Storage for saving project and annotation
+#    settings, as well as local task storage.
+# 2) Connecting an external Postgres database for saving project and annotation
+#    settings, and cloud by connecting cloud storage for tasks.
+#
+################################################################################
+
+ENV STORAGE_PERSISTENCE=1
+
+CMD exec label-studio --host=$SPACE_HOST