update README for develop suggest

Author: camilesing

README.md

@@ -3,6 +3,8 @@
 This extension provides Flink SQL support for VSCode. support Flink SQL error grammar check, syntax highlighting, complete keywords, rename, find all references and code format, including user-defined functions.
 
 
+> I suggest that you develop and debug on vscode based on the information (https://code.visualstudio.com/docs/java/java-debugging) to obtain a better experience.
+
 ## 1.Features
 
 ### 1.1 Grammar Check