doc.js; clean up index

docs/index.md

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-Prosperon is built in a code-first fashion. Games in it are written with javascript, mostly up to, but not including, ES6. The nicest way to use it is to heavily abuse inherited properties and closures.
+Prosperon is an opinionated Javascript-based runtime for making games, quickly. It is NOT web compatible, and doesn't intend to be. It uses a hefty dosing of ideas from the Misty language, to make an easy and intuitive way to make virtual worlds.
 
-It provides a very high level way of rendering, which it translates to a variety of backends.
+With Javascript's C-like syntax, it makes it easy to make classic style games like Pacman or Fantasy Zone, without diving into Unity, Godot or Unreal Engine.
+
+# Gradual performance
+Prosperon makes it easy to make something quickly, and if it runs well, you're golden! But if it's slow, there are a plethora of options to make it faster. Plus, with native C plugins, there is nothing that can't be figured out.
+
+# API
+~~prosperon master
+Here are the modules that can be included via 'use'.
+
+// global syntax level things
+
+
+// core
+prosperon
+input
+json
+layout
+resources
+sound
+std
+time
+search
+color
+tween
+util
+io
+os
+
+// rendering
+draw2d
+render
+graphics
+
+// game components
+emitter
+sprite
+transform
+
+// math
+pmath
+vector
+geometry
+
+
+~~prosperon dev
+convert
+debug
+diff
+nogame
+parseq
+path
+physics
+gizmos
+log
+stats
+stdprofile
+stdtest
+test
+textedit
+editor
+yaml
+spline
+profile
+sim