Improve docs

README.md

@@ -48,7 +48,7 @@ Access `http://localhost:4040` for Spark-UI and `sc://localhost:15002` for Spark
 - `%SQL` and `%%SQL` magic for executing Spark SQL in IPython/Jupyter
   - SQL statement can be written in multiple lines, support using `;` to separate statements
   - Support config `connect client`, see [Spark Connect Overview](https://spark.apache.org/docs/latest/spark-connect-overview.html#spark-connect-overview)
-  - TODO: Visualize the result of SQL statement(Spark Dataframe)
+  - *TODO: Visualize the result of SQL statement(Spark Dataframe)*
 - `sparglim-server` for daemon Spark Connect Server
 
 ## User cases