```ruby
# coding: utf-8

lib = File.expand_path('../lib', __FILE__)
$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
require 'mako/version'

Gem::Specification.new do |spec|
  spec.name          = 'mako'
  spec.version       = Mako::VERSION
  spec.authors       = ['Jonathan Pike']
  spec.email         = ['jonathan.d.s.pike@gmail.com']

  spec.summary       = 'A static site feed reader'
  spec.homepage      = 'https://github.com/jonathanpike/mako'
  spec.license       = 'MIT'

  spec.files         = `git ls-files -z`.split("\x0").reject do |f|
    f.match(%r{^(test|spec|features)/})
  end
  spec.bindir        = 'exe'
  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
  spec.require_paths = ['lib']

  spec.add_development_dependency 'bundler', '~> 1.14'
  spec.add_development_dependency 'rake'
  spec.add_development_dependency 'minitest'
  spec.add_development_dependency 'vcr'
  spec.add_development_dependency 'rubocop'

  spec.add_runtime_dependency 'feedjira', '~> 2.0'
  spec.add_runtime_dependency 'faraday'
  spec.add_runtime_dependency 'nokogiri'
  spec.add_runtime_dependency 'sass'
end
```

Add correct path for executables and bindir
user
```ruby
# coding: utf-8

lib = File.expand_path('../lib', __FILE__)
$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
require 'mako/version'

Gem::Specification.new do |spec|
  spec.name          = 'mako'
  spec.version       = Mako::VERSION
  spec.authors       = ['Jonathan Pike']
  spec.email         = ['jonathan.d.s.pike@gmail.com']

  spec.summary       = 'A static site feed reader'
  spec.homepage      = 'https://github.com/jonathanpike/mako'
  spec.license       = 'MIT'

  spec.files         = `git ls-files -z`.split("\x0").reject do |f|
    f.match(%r{^(test|spec|features)/})
  end
  spec.bindir        = 'bin'
  spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
  spec.require_paths = ['lib']

  spec.add_development_dependency 'bundler', '~> 1.14'
  spec.add_development_dependency 'rake'
  spec.add_development_dependency 'minitest'
  spec.add_development_dependency 'vcr'
  spec.add_development_dependency 'rubocop'

  spec.add_runtime_dependency 'feedjira', '~> 2.0'
  spec.add_runtime_dependency 'faraday'
  spec.add_runtime_dependency 'nokogiri'
  spec.add_runtime_dependency 'sass'
end
```
assistant