Add readme

Author: szymmirr

README.md

@@ -0,0 +1,21 @@
+# GHTCP Plus
+
+**Guitar Hero Three Control Panel+** is an updated version of GHTCP originally made by [MaXKilleR](https://www.scorehero.com/forum/viewtopic.php?t=69818).
+
+This tool allows adding custom content to the PC version of Guitar Hero III and Aerosmith.
+
+![GHTCP+](https://user-images.githubusercontent.com/12998256/104161783-b4c68700-53f3-11eb-9c4d-bffa14082133.png)
+
+## GHTCP+ contributors
+* [No1mann](https://github.com/no1mann/Open-GHTCP)
+* [ExileLord](https://github.com/ExileLord/Open-GHTCP)
+* [fallk](https://github.com/uwx/Open-GHTCP)
+* [labyrinthofdreams](https://github.com/labyrinthofdreams/Open-GHTCP)
+* [AdituV](https://github.com/adituv/Open-GHTCP)
+* [szymmirr](https://github.com/szymmirr/Open-GHTCP)
+
+## Changelog
+Changelog can be found [here](https://github.com/szymmirr/Open-GHTCP/blob/master/changelog.txt).
+
+## Download
+Download and install [GHTCP](http://www.mediafire.com/download.php?g8w7t99cp40sd5r), then upgrade it to [GHTCP+](https://github.com/szymmirr/Open-GHTCP/releases).