Update README.md

Author: aidlearning

README.md

@@ -29,7 +29,7 @@
 <img src="http://www.aidlearning.net/git_img/2.jpg" />
 
 
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+[Download the v0.87F2 now!](https://download.s21i.faiusr.com/23668748/0/0/ABUIABBKGAAgz6OqgQYohqzOiAc?f=aidv0.87F2fix.apk&v=1613402576) 
 
 ## Features
 ### Innovation