Merge branch 'master' of https://github.com/downgoon/gbk2utf8

# Conflicts:
#	README.md

Author: downgoon

README.md

@@ -6,6 +6,10 @@
 
 for help, run ``java -jar gbk2utf8-0.0.1-SNAPSHOT-all.jar``
 
+**NOTE**
+
+a precompiled package is available at [v0.1.1 Releases](https://github.com/downgoon/gbk2utf8/releases/tag/v0.1.1), you can go to this page and download it directly.
+
 ## how to build
 
 	git clone https://github.com/downgoon/gbk2utf8.git
@@ -22,4 +26,22 @@ for help, run ``java -jar gbk2utf8-0.0.1-SNAPSHOT-all.jar``
 
 ## package rename  (a new tool)
 
-``java -cp ./gbk2utf8-0.0.1-SNAPSHOT-all.jar io.downgoon.tools.PackageRename $src-gbk-path $dst-utf8-path <src-path> <dst-path> <original-package-prefix> <alternative-package-prefix>``
+``java -cp ./gbk2utf8-0.0.1-SNAPSHOT-all.jar io.downgoon.tools.PackageRename $src-gbk-path $dst-utf8-path <src-path> <dst-path> <original-package-prefix> <alternative-package-prefix>``
+
+---
+
+## 反馈问题
+
+如果您有不清楚的地方或更好的建议，请在**Issue**中给我们反馈。
+操作步骤如下：
+
+1. 找到**Issue**入口
+![Issue入口](https://cloud.githubusercontent.com/assets/23731186/20863916/7075a704-ba17-11e6-8d18-3670c59c5781.png)
+
+2. 新建**Issue**
+![新建Issue](https://cloud.githubusercontent.com/assets/23731186/20863922/beb848ae-ba17-11e6-93e9-4a6278d8816a.png)
+
+3. 别忘了最好设置一个**Issue**类型
+![反馈问题](https://cloud.githubusercontent.com/assets/23731186/20863944/254c597a-ba18-11e6-9df7-d6f23ca1cf7e.png)
+
+