Add description of what everything does to readme.

readme.md

@@ -3,3 +3,33 @@ DarkWiiPlayer/JS
 
 A collection of general-purpose Javascript snippets/modules that I end up
 copy-pasting around more often than necessary.
+
+---
+
+So what does it all do?
+
+## Better
+
+an "improved" version of the builtin HTMLElement that's hopefully a lot easier
+to build actual things with. It's really just another utility layer.
+
+## CSS
+
+Generate CSS from JS objects. Yes, you can generate CSS from JSON now. Or from
+YAML. Or from whatever you want, really.
+
+## Listener
+
+A proxy object that fires a callback when certain (or all) properties are
+changed.
+
+## Skooma
+
+Generate HTML and SVG DOM nodes more easily and do stuff with them. Feels like
+an in-between of using a templating language and writing lisp code. Overall very
+recommendable.
+
+## Template
+
+Turns template literals directly into HTML templates. Just read the code, it's
+like 5 lines or so.