branch change master to main

Author: rupy1014

Example/SwiftyBootpay.xcworkspace/xcuserdata/taesupyoon.xcuserdatad/UserInterfaceState.xcuserstate

@@ -23,14 +23,14 @@ Pod::Spec.new do |s|
   # s.screenshots     = 'www.example.com/screenshots_1', 'www.example.com/screenshots_2'
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
   s.author           = { 'bootpay' => 'bootpay.co.kr@gmail.com' }
-  s.source           = { :git => 'https://github.com/bootpay/SwiftyBootpay.git', :tag => s.version.to_s }
+  s.source           = { :git => 'https://github.com/bootpay/SwiftyBootpay.git', :tag => s.version.to_s, :branch => 'main' }
 
   # s.social_media_url = 'https://twitter.com/<TWITTER_USERNAME>'
 
   s.ios.deployment_target = '10.0'
   s.swift_version = '4.2'
 
-  s.source_files = 'SwiftyBootpay/Classes/**/*' 
+  s.source_files = 'SwiftyBootpay/Classes/**/*'
 
 
   s.resource_bundles = {