add: example

README.md

@@ -17,3 +17,19 @@ source:
   batch.count: 17        # how many data records should source emits in each batch
   sleep.time: 1000       # sleep duration (in ms) between two consecutive batches
 ```
+
+## example
+
+```
+CreateTableEvent{tableId=default_namespace.default_schema.table_name, schema=columns={`id` BIGINT}, primaryKeys=id, options=()}
+DataChangeEvent{tableId=default_namespace.default_schema.table_name, before=[], after=[1], op=INSERT, meta=()}
+...
+AddColumnEvent{tableId=default_namespace.default_schema.table_name, addedColumns=[ColumnWithPosition{column=`column1` VARBINARY(76), position=LAST, existedColumnName=null}]}
+DataChangeEvent{tableId=default_namespace.default_schema.table_name, before=[], after=[18, [B@222d0385], op=INSERT, meta=()}
+DataChangeEvent{tableId=default_namespace.default_schema.table_name, before=[18, [B@75f69728], after=[18, [B@5e59cd8a], op=UPDATE, meta=()}
+...
+AddColumnEvent{tableId=default_namespace.default_schema.table_name, addedColumns=[ColumnWithPosition{column=`column2` CHAR(80), position=LAST, existedColumnName=null}]}
+DataChangeEvent{tableId=default_namespace.default_schema.table_name, before=[], after=[35, [B@9f374e2, 蟮藝ᐮ㒥먬⬸], op=INSERT, meta=()}
+DataChangeEvent{tableId=default_namespace.default_schema.table_name, before=[35, [B@32ae4f19, 蟮藝ᐮ㒥먬⬸], after=[], op=DELETE, meta=()}
+...
+```