Change resources links in README.md

AJ's Lua.xml is outdated and the theming wiki is broken, so let's point to the internal docs and Lua for SM5 instead.

README.md

@@ -25,8 +25,8 @@ StepMania can be compiled using [CMake](http://www.cmake.org/). More information
 
 * Website: http://www.stepmania.com/
 * IRC: irc.freenode.net/#stepmania-devs
-* Theming Wiki: http://goo.gl/SO7W5
-* Lua Documentation for Themes: http://goo.gl/XNiov
+* Lua for SM5: https://dguzek.github.io/Lua-For-SM5/
+* Lua API Documentation can be found in the Docs folder.
 
 ## Licensing Terms