Update the tag of version

AAChartModel · AAChartModel · commit 56dc0555fbd3 · 2017-06-19T18:17:56.000+08:00
diff --git a/AAChartKitLib/AAChartKit.podspec b/AAChartKitLib/AAChartKit.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
     s.name         = 'AAChartKit'
-    s.version      = '2.1.0'
+    s.version      = '2.1.1'
     s.summary      = 'An elegant and friendly chart library for iOS developer'
     s.description  = <<-DESC
 ***
