Update Dockerfile

Author: hirensoni913

Dockerfile

@@ -12,4 +12,5 @@ COPY ["install_postgres_json_schema_extension.sh", "install_postgres_json_schema
 RUN chmod u+x install_postgres_json_schema_extension.sh
 RUN ./install_postgres_json_schema_extension.sh
 
-CMD /bin/bash ./init_demo_db.sh
+RUN chmod u+x init_demo_db.sh
+RUN ./init_demo_db.sh