[fix] update podspec

Author: zhgchgli0718

ZMarkupParser.podspec

@@ -1,12 +1,12 @@
 Pod::Spec.new do |s|
   s.name             = 'ZMarkupParser'
-  s.version          = '1.0.3'
+  s.version          = '1.0.4'
   s.summary          = 'ZMediumToMarkdown lets you download Medium post and convert it to markdown format easily.'
   s.homepage         = 'https://github.com/ZhgChgLi/ZMediumToMarkdown'
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
   s.author           = { 'ZhgChgLi' => '[email protected]' }
   s.source           = { :git => 'https://github.com/ZhgChgLi/ZMediumToMarkdown.git', :tag => 'v' + s.version.to_s }
   s.ios.deployment_target = '11.0'
   s.swift_version = '5.0'
-  s.source_files = 'Sources/MarkupParser/**/*.swift'
+  s.source_files = ["Sources/**/*.swift"]
 end