Change cask install to hyper (#809)

It looks like the cask package name has changed in the renaming ``` brew cask install hyperterm Error: No available Cask for hyperterm Error: nothing to install ```
vercel · Oct 7, 2016 · f58b785 · f58b785
1 parent c6b44d4
commit f58b785
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/README.md b/README.md
@@ -15,7 +15,7 @@ If you're on macOS, you can also use [Homebrew Cask](https://caskroom.github.io/
 
 ```bash
 $ brew cask update
-$ brew cask install hyperterm
+$ brew cask install hyper
 ```
 
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