Update README.md

README.md

@@ -1,10 +1,15 @@
 # hive-metastore
 
 Docker image used to create a minimal unsecured hive metastore for teaching 
-purposes. DO NOT use for production.
+purposes. 
+
+> [!CAUTION]
+> DO NOT use for production. 
+
+Why? Because I haven't tested this image anywhere but in small local setups for demos and I like sleeping easy knowing that I've at least said this.
 
 ENV variables:
  - METASTORE_DB_HOSTNAME - hostname used to ping metastore db during init
- - METASTORE_DB_PORT - port used to ping metastore db 
  - METASTORE_TYPE - type of metastore db (options: mysql, postgres) (default: mysql)
-
+ - METASTORE_DB_PORT - port used for metastore db (options: 3306, 5432) (defaults: 3306 if type is mysql, 5432 if type is postgres)
+