Added comment about install binaries

Author: msoap

README.md

@@ -4,6 +4,7 @@ go-carpet - show test coverage for Go source files
 [![GoDoc](https://godoc.org/github.com/msoap/go-carpet?status.svg)](https://godoc.org/github.com/msoap/go-carpet)
 [![Build Status](https://travis-ci.org/msoap/go-carpet.svg?branch=master)](https://travis-ci.org/msoap/go-carpet)
 [![Coverage Status](https://coveralls.io/repos/github/msoap/go-carpet/badge.svg?branch=master)](https://coveralls.io/github/msoap/go-carpet?branch=master)
+[![Homebrew formula exists](https://img.shields.io/badge/homebrew-🍺-d7af72.svg)](https://github.com/msoap/go-carpet#install)
 [![Report Card](https://goreportcard.com/badge/github.com/msoap/go-carpet)](https://goreportcard.com/report/github.com/msoap/go-carpet)
 
 To view the test coverage in the terminal, just run go-carpet.
@@ -15,7 +16,19 @@ With -256colors option, shades of green indicate the level of coverage.
 Install
 -------
 
+From source:
+
     go get -u github.com/msoap/go-carpet
+    ln -s $GOPATH/bin/go-carpet /usr/local/bin/go-carpet
+
+Download binaries from: [releases](https://github.com/msoap/go-carpet/releases) (OS X/Linux/Windows)
+
+Or install from homebrew (OS X):
+
+    brew tap msoap/tools
+    brew install go-carpet
+    # update:
+    brew update; brew upgrade go-carpet
 
 Usage
 -----