Update the tag of released version

Author: AAChartModel

AAChartKitLib/AAChartKit.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
     s.name         = 'AAChartKit'
-    s.version      = '2.0.9'
+    s.version      = '2.1.0'
     s.summary      = 'An elegant and friendly chart library for iOS developer'
     s.description  = <<-DESC
 ***
@@ -13,7 +13,7 @@ Pod::Spec.new do |s|
 ***
                    DESC
     s.homepage     = 'https://github.com/AAChartModel/AAChartKit'
-    s.license      = 'MIT'
+    s.license      = { :type => "MIT", :file => 'LICENSE.md' }
     s.authors      = {'An An' => '[email protected]'}
     s.platform     = :ios, '7.0'
     s.source       = {:git => 'https://github.com/AAChartModel/AAChartKit.git', :tag => s.version}