Recommend Homebrew in INSTALL.md.

Damian Rouson · Damian Rouson · commit 230049a6e712 · 2017-02-07T13:07:16.000-08:00
diff --git a/INSTALL.md b/INSTALL.md
@@ -35,6 +35,7 @@ the OpenCoarrays installation script.
 ### macOS ###
 
 OS X users may use the [Homebrew] or [MacPorts] package management systems to install OpenCoarrays.
+We recommend [Homebrew]. 
 
 Homebrew installation steps:
 ```
