Add update message

README.md

@@ -2,6 +2,7 @@ PixivPy [![Build Status](https://travis-ci.org/upbit/pixivpy.svg)](https://travi
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 _Pixiv API for Python (with Auth supported)_
 
+* [2019/09/03] Support new auth() check `X-Client-Time/X-Client-Hash` (thanks [DaRealFreak](https://github.com/DaRealFreak), [#83](https://github.com/upbit/pixivpy/issues/83))
 * [2019/04/27] Support hosts proxy for AppAPI, which can use behind the Great Wall (See [example_api_proxy.py](https://github.com/upbit/pixivpy/blob/master/example_api_proxy.py))
 * [2017/04/18] Fix encoder BUG for `illust_bookmark_add()/illust_bookmark_delete()` params (thanks [naplings](https://github.com/naplings))
 * [2017/01/05] Add `PixivAPI().works()` liked API `illust_detail()` for App-API (thanks [Mapaler](https://github.com/Mapaler)), release v3.3