README: Install godu using homebrew

[viktomas]

• I've read Contribution guide
• I've tested everything that doesn't relate to tcell.Screen API

Closes #65

Formula: https://github.com/viktomas/homebrew-taps/blob/master/godu.rb

I've followed this simple tutorial: https://engineering.innovid.com/distributing-command-line-tools-with-homebrew-d03e795cadc8#748e

class HelloWorld < Formula
  desc "usefull script that prints Hello World to your Console"
  homepage "https://bitbucket.org/user/repo"


  url "https://bitbucket.org/user/repo/get/HEAD.zip", :using => :curl

  def install
    bin.install "innovid/hello-world"
  end
end

and only added sha256 attribute to avoid a warning.

Thanks @leonklingele for the recommendation. I got a bit confused by the Makefile in pick.

[codecov]

Codecov Report

Merging #81 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master       #81   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            7         7           
  Lines          247       247           
=========================================
  Hits           247       247           

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