First start after install fail

[BioQwer]

Hello.

I use command for install this app.
gem install json github json_pure

But simple execute gh do this error.

/usr/local/Cellar/ruby/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require': dlopen(/usr/local/Cellar/ruby/2.3.1/lib/ruby/2.3.0/x86_64-darwin16/readline.bundle, 9): Library not loaded: /usr/local/opt/readline/lib/libreadline.6.dylib (LoadError)
  Referenced from: /usr/local/Cellar/ruby/2.3.1/lib/ruby/2.3.0/x86_64-darwin16/readline.bundle
  Reason: image not found - /usr/local/Cellar/ruby/2.3.1/lib/ruby/2.3.0/x86_64-darwin16/readline.bundle
    from /usr/local/Cellar/ruby/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/lib/ruby/gems/2.3.0/gems/github-0.7.2/lib/github/ui.rb:2:in `<top (required)>'
    from /usr/local/Cellar/ruby/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/lib/ruby/gems/2.3.0/gems/github-0.7.2/lib/github.rb:5:in `<top (required)>'
    from /usr/local/Cellar/ruby/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Cellar/ruby/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/lib/ruby/gems/2.3.0/gems/github-0.7.2/bin/gh:6:in `<top (required)>'
    from /usr/local/bin/gh:23:in `load'
    from /usr/local/bin/gh:23:in `<main>'

My system info.

bioqwer$ sw_vers -productVersion 
10.12
bioqwer$ ruby -v
ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin16]
bioqwer$ gem -v
2.5.1