Readme: embed access token video

Change-Id: I9c399f2a955efb921d99d37577d8d5f47ecf3931
diff --git a/Readme.md b/Readme.md
index f7b0832..c831304 100644
--- a/Readme.md
+++ b/Readme.md
@@ -104,8 +104,7 @@
 
 The whole process is shown in this video:
 
-https://korap.github.io/RKorAPClient/man/figures/RKorAPClient-get-and-persists-accessToken.mp4
-
+https://user-images.githubusercontent.com/11092081/142769056-b389649b-eac4-435f-ac6d-1715474a5605.mp4
 
 ## Demos