Update README.md

MrGreensWorkshop · web-flow · commit 42b5598b1039 · 2022-10-13T19:51:29.000+09:00
diff --git a/README.md b/README.md
@@ -11,7 +11,7 @@
 
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-[<img src="/docs/video_pic.jpg" height="250" alt="Alexa-enabled devices with Raspberry Pi Pico W">](https://youtu.be/laeV6GgGJMA)
+[<img src="/docs/video_pic.jpg" max-height="250" alt="Alexa-enabled devices with Raspberry Pi Pico W">](https://youtu.be/laeV6GgGJMA)
 
 ### Introduction
 
