move changelog to

CHANGELOG.md

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+# Changelog
+
+- 2015-03-31 
+  - enh: code enhancement, plugin should now work with OSMap too!
+- 2015-03-29 
+  - new: JDownloads 3 support
+  - new: 'downloads' view support
+  - new: installer script (version check)
+- 2015-02-28 
+  - enh: language cleanup
+- 2014-04-28 
+  - enh: code cleanup
+- 2014-01-17 
+  - fix: sub categories
+- 2013-09-27 
+  - new: plugin completely rewritten for Joomla 2.5+ and new JDownloads version
+  - new: public release
+

README.md

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+# Xmap - jDownloads Extension for Joomla
+
+![](https://img.shields.io/static/v1?label=Joomla&message=3.X&style=flat&logo=joomla&logoColor=orange&color=blue)
+![](https://img.shields.io/github/release/z-index-net/joomla-plugin-xmap-jdownloads.svg)
+![](https://img.shields.io/github/downloads/z-index-net/joomla-plugin-xmap-jdownloads/total.svg)
+![](https://img.shields.io/badge/Maintained%3F-no-red.svg)
+![](https://img.shields.io/github/license/z-index-net/joomla-plugin-xmap-jdownloads.svg)
+
+Add support for categories and downloads
+
+### Notes
+**Only works under Joomla! 3 with JDownloads 3**
+
+### Preview
+
+![Screenshot](./screenshots/plg_xmap_com_jdownloads.0.png?raw=true)
+