update select demo

components/select/__tests__/__snapshots__/demo.test.js.snap

@@ -853,7 +853,7 @@ exports[`renders ./components/select/demo/tags.md correctly 1`] = `
         style="display:block;user-select:none;-webkit-user-select:none;"
         unselectable="unselectable"
       >
-        标签模式
+        Tags Mode
       </div>
       <ul>
         <li

components/select/demo/tags.md

@@ -30,7 +30,7 @@ ReactDOM.render(
   <Select
     mode="tags"
     style={{ width: '100%' }}
-    placeholder="标签模式"
+    placeholder="Tags Mode"
     onChange={handleChange}
   >
     {children}