Update 2020_08_14.md

multi_Thread/ledThreads/2020_08_14.md

@@ -97,19 +97,19 @@ Makefile이 생성된 후, make를 입력하여 응용 프로그램을 생성하
 ####  3-1) ./main
 
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/NfKf4ip-5uo" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen>l</iframe>
+![video](0.mp4)
 <br><br>
 
 ####  3-2) ./main 1 5
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/UKGIucKDOBQ" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen>l</iframe>
+![video](1.mp4)
 <br><br>
 
 ####  3-3) ./main 2 7
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/5sroLUnva3o" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen>l</iframe>
+![video](2.mp4)
 <br><br>
 
 ####  3-4) ./main 3 6
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/z_3D1bgHnQE" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen>l</iframe>
+![video](3.mp4)
\ No newline at end of file