Readme: add features

Close #3

Author: myfreeer

README.md

@@ -6,6 +6,12 @@ nginx build scripts on msys2 mingw with dependencies and custom patches
 
 [![Build status](https://ci.appveyor.com/api/projects/status/cjd77mirpuc5leht?svg=true)](https://ci.appveyor.com/project/myfreeer/nginx-build-msys2)
 
+## Features
+
+* native x86-64 (x64, amd64) build for windows.
+* nginx can execute in directory or path containing non-ascii characters.
+* read file names in directory as utf8 encoding (affecting autoindex module).
+
 ## [Releases](https://github.com/myfreeer/nginx-build-msys2/releases)
 
 * `nginx-*-i686.exe`: 32-bit nginx