Small typo (#32)

Author: danielkroeni

README.md

@@ -12,7 +12,7 @@
 
 
 ## Installation
-Install `ArraryFire` via the download page.
+Install `ArrayFire` via the download page.
   - https://arrayfire.com/download/
 
 `ArrayFire` can also be fetched from [nixpkgs](https://github.com/nixos/nixpkgs) `master`.
@@ -90,4 +90,4 @@ ArrayFire Array
     2.0000     6.0000
 
 -}
-```
+```