更新 README.md

README.md

-<video src="https://www.ixigua.com/pseries/6801821311610913284_6801807492243259907" controls="controls" width="500" height="300">您的浏览器不支持播放该视频！</video>
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+<iframe 
+    height=450 
+    width=800 
+    src="https://www.ixigua.com/pseries/6801821311610913284_6801807492243259907" 
+    frameborder=0 
+    allowfullscreen>
+</iframe>
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