Update README.md

Author: tomchen

README.md

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-# ipfilter
+# eMule IPFilter
+
+IPFilter for eMule and other eDonkey/BitTorrent/P2P clients.
+
+Homepage: [IPFilter on emulefans.com](http://emulefans.com/news/plugin/ipfilter/ipfilter-general/)
+
+Inactive since 2013, semi-archived project. Imported from [code.google.com/archive/p/ipfilter-emule](https://code.google.com/archive/p/ipfilter-emule/). Maintained by [eMuleFans.com](https://emulefans.com/) / [@tomchen](https://github.com/tomchen).
+
+#### Original description
+
+The old versions are based on [Meuh6879/R3Qu13M's IPFilter](http://forum.emule-project.net/index.php?showtopic=19247), zmhleo's version and tetris' list.
+
+New ones are based on [Bluetack's IP lists](http://www.bluetack.co.uk/config/) (free version) and [eMuleFans' Xunlei (Thunder) & QQ (Xuanfeng) Offline server IP list](http://emulefans.com/news/plugin/ipfilter/ipfilter-xunlei/).