add docs for config

Author: teo

docs/gravitino-server-config.md

@@ -63,8 +63,8 @@ The following table lists the storage configuration items:
 | `gravitino.entity.store.relational.jdbcUser`      | The username that the `JDBCBackend` needs to use when connecting the database. It is required for `MySQL`.                                                                                                                                              | `gravitino`                       | Yes if the jdbc connection url is not `jdbc:h2` | 0.5.0            |
 | `gravitino.entity.store.relational.jdbcPassword`  | The password that the `JDBCBackend` needs to use when connecting the database. It is required for `MySQL`.                                                                                                                                              | `gravitino`                       | Yes if the jdbc connection url is not `jdbc:h2` | 0.5.0            |
 | `gravitino.entity.store.relational.storagePath`   | The storage path for embedded JDBC storage implementation. It supports both absolute and relative path, if the value is a relative path, the final path is `${GRAVITINO_HOME}/${PATH_YOU_HAVA_SET}`, default value is `${GRAVITINO_HOME}/data/jdbc`     | `${GRAVITINO_HOME}/data/jdbc`     | No                                              | 0.6.0-incubating |
-| `gravitino.entity.store.relational.maxConnections`| The maximum number of connections for the JDBC Backend connection pool                                                                                                                                                                                  | `100`                             | No                                              | 0.9.0            |
-| `gravitino.entity.store.relational.maxWaitMillis` | The maximum wait time in milliseconds for a connection from the JDBC Backend connection pool                                                                                                                                                            | `1000`                            | No                                              | 0.9.0            |
+| `gravitino.entity.store.relational.maxConnections`| The maximum number of connections for the JDBC Backend connection pool                                                                                                                                                                                  | `100`                             | No                                              | 0.9.0-incubating |
+| `gravitino.entity.store.relational.maxWaitMillis` | The maximum wait time in milliseconds for a connection from the JDBC Backend connection pool                                                                                                                                                            | `1000`                            | No                                              | 0.9.0-incubating |
 
 
 :::caution