Update README.md

README.md

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 ## Example Request：
 - Left Side: 
 ```http://localhost:30016/getdata?content=sightVisitorFlowByDay&date=2023-05-03&sight=八公山森林公园```
+
 - Middle: ```http://localhost:30016/getdata?content=currentEventStrategy&date=2023-05-03```
+
 - Right Side: ```http://localhost:30016/getdata?content=getEventCategoryCount&year=2024```
 
 ## How to Run: