Update README.md

Author: MorvanZhou

README.md

@@ -137,10 +137,12 @@ Tkinter 是 python 自带的可视化窗口包, 可以用来做 simulation 的
 
 ## 赞助, 让教学变得更好
 
-<form style="text-align:center;" method="post" action="https://shenghuo.alipay.com/send/payment/fill.htm" target="_blank">
-            <input type="hidden" value="[email protected]" name="optEmail">
-            <input type="hidden" value="10" name="payAmount">
-            <input type="hidden" name="支持继续制作优质视频" placeholder="付款说明">
-            <input type="image" value="给我付款" src="images/alipay.png" name="pay"> 
-        </form>
+<form style="text-align:center;" method="post" action="https://shenghuo.alipay.com/send/payment/fill.htm" target="_blank" markdown=1>
+  ?{hidden}("Name" "" "Name..."){.form-control}
+  <input type="hidden" value="[email protected]" name="optEmail">
+  <input type="hidden" value="10" name="payAmount">
+  <input type="hidden" name="支持继续制作优质视频" placeholder="付款说明">
+  <input type="image" value="给我付款" src="images/alipay.png" name="pay"> 
+</form>
+<input type="text" name="Choose an Email ?"/>