Update changelog

Author: CaiJingLong

CHANGELOG.md

@@ -1,3 +1,26 @@
+# CHANGELOG
+
+- [CHANGELOG](#changelog)
+  - [0.5.1](#051)
+  - [0.5.0](#050)
+  - [0.4.1](#041)
+  - [0.4.0+2](#0402)
+  - [0.4.0+1](#0401)
+  - [0.4.0](#040)
+  - [0.3.0](#030)
+  - [0.2.0](#020)
+  - [0.1.6](#016)
+  - [0.1.5](#015)
+  - [0.1.4](#014)
+  - [0.1.3](#013)
+  - [0.1.2](#012)
+  - [0.1.1](#011)
+  - [0.1.0](#010)
+
+## 0.5.1
+
+Fix some png background error.
+
 ## 0.5.0
 
 Support add text.

pubspec.yaml

@@ -1,6 +1,6 @@
 name: image_editor
 description: Rotate ,flip, crop your image. Use objc/kotlin to handle it.
-version: 0.5.0
+version: 0.5.1
 author: Caijinglong<[email protected]>
 homepage: https://github.com/fluttercandies/flutter_image_editor