```ruby
# frozen_string_literal: true

Pod::Spec.new do |s|
  s.name             = 'Hero'
  s.version          = '1.5.0'
  s.summary          = 'Elegant transition library for iOS'

  s.description      = <<-DESC
                        Hero is a library for building iOS view controller transitions. It provides a declarative layer on top of the UIKit's cumbersome transition APIs. Making custom transitions an easy task for developers.
  DESC

  s.homepage         = 'https://github.com/HeroTransitions/Hero'
  s.screenshots      = 'https://github.com/HeroTransitions/Hero/blob/master/Resources/Hero.png?raw=true'
  s.license          = 'MIT'
  s.author           = { 'Luke' => 'lzhaoyilun@gmail.com' }
  s.source           = { git: 'https://github.com/HeroTransitions/Hero.git', tag: s.version.to_s }

  s.ios.deployment_target = '8.0'
  s.tvos.deployment_target = '9.0'

  s.ios.frameworks = 'UIKit', 'Foundation', 'QuartzCore', 'CoreGraphics', 'CoreMedia'
  s.tvos.frameworks = 'UIKit', 'Foundation', 'QuartzCore', 'CoreGraphics', 'CoreMedia'

  s.swift_versions = '4.2'

  s.requires_arc = true

  s.source_files = 'Sources/**/*.swift'
end
```

Add Joe Mattiello into Podspec authors for publishing
user
```ruby
# frozen_string_literal: true

Pod::Spec.new do |s|
  s.name             = 'Hero'
  s.version          = '1.5.0'
  s.summary          = 'Elegant transition library for iOS'

  s.description      = <<-DESC
                        Hero is a library for building iOS view controller transitions. It provides a declarative layer on top of the UIKit's cumbersome transition APIs. Making custom transitions an easy task for developers.
  DESC

  s.homepage         = 'https://github.com/HeroTransitions/Hero'
  s.screenshots      = 'https://github.com/HeroTransitions/Hero/blob/master/Resources/Hero.png?raw=true'
  s.license          = 'MIT'
  s.author           = { 
    'Luke' => 'lzhaoyilun@gmail.com',
    'Joe Mattiello' => 'git@joemattiello.com' 
  }
  s.source           = { git: 'https://github.com/HeroTransitions/Hero.git', tag: s.version.to_s }

  s.ios.deployment_target = '8.0'
  s.tvos.deployment_target = '9.0'

  s.ios.frameworks = 'UIKit', 'Foundation', 'QuartzCore', 'CoreGraphics', 'CoreMedia'
  s.tvos.frameworks = 'UIKit', 'Foundation', 'QuartzCore', 'CoreGraphics', 'CoreMedia'

  s.swift_versions = '4.2'

  s.requires_arc = true

  s.source_files = 'Sources/**/*.swift'
end
```
assistant