add video on readme

Gumichocopengin8 · Gumichocopengin8 · commit a45ba02fda64 · 2019-05-04T23:55:03.000-04:00
diff --git a/README.md b/README.md
@@ -10,6 +10,8 @@ Our project is to make terrain like Minecraft.
 
 It took 1-2 weeks to create this world.
 
+Check out [this video!](https://youtu.be/PEkNHBw66G8)
+
 ## How to run
 
 - Download `CLion` by JetBrains
