add the video tutorial

add the youtube link
xirong · Jun 20, 2017 · 3ff4f10 · 3ff4f10
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commit 3ff4f10
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/video b/video
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+https://www.youtube.com/watch?v=BCQHnlnPusY&t=2s