Added a link to video in README.md (#2)

MaryLynJuana · tshemsedinov · commit 28e54c63d02b · 2019-01-22T20:52:38.000+02:00
diff --git a/README.md b/README.md
@@ -1 +1,2 @@
 # Asynchronity with Promise
+[![Асинхронность на промисах, Promise, all, then, catch, race](https://img.youtube.com/vi/RMl4r6s1Y8M/0.jpg)](https://www.youtube.com/watch?v=RMl4r6s1Y8M)

Original file line number	Diff line number	Diff line change
`@@ -1 +1,2 @@`
`1`	`1`	`# Asynchronity with Promise`
	`2`	`+[![Асинхронность на промисах, Promise, all, then, catch, race](https://img.youtube.com/vi/RMl4r6s1Y8M/0.jpg)](https://www.youtube.com/watch?v=RMl4r6s1Y8M)`