Added a link to video in README.md (#1)

MaryLynJuana · tshemsedinov · commit 8642c7185d61 · 2019-01-22T20:26:56.000+02:00
diff --git a/README.md b/README.md
@@ -1,2 +1,3 @@
-# Callbacks
-Callbacks, Listeners and Events
+# Callbacks, Listeners and Events
+
+[![Функции высшего порядка, колбеки, события](https://img.youtube.com/vi/1vqATwbGHnc/0.jpg)](https://www.youtube.com/watch?v=https://youtu.be/1vqATwbGHnc)
