update podspec file

@@ -26,10 +26,11 @@ Pod::Spec.new do |s|
 
   s.subspec 'CordovaPlugins' do |ss|
   ss.source_files = 'YHExplorer/CordovaPlugins/*.{h,m}'
+
+  ss.subspec 'webp' do |sss|
+  sss.source_files = 'YHExplorer/CordovaPlugins/webp/*.{h,m}'
   end
 
-  s.subspec 'webp' do |ss|
-  ss.source_files = 'YHExplorer/CordovaPlugins/webp/*.{h,m}'
   end
 
   s.subspec 'Extend' do |ss|