Copied over README.md to the documentation.

lang-slide/scribblings/lang-slide.scrbl

@@ -6,6 +6,7 @@
          ]
 
 @title{A picture showing all the languages used to implement Racket.}
+@author{Sam Tobin-Hochstadt (Originally by Robby Findler)}
 
 Source code: @url{https://github.com/samth/lang-slide}
 
@@ -16,3 +17,29 @@ Here is a bird's eye view of the modules implementing racket:
 And here is the languages they use:
 
 @(langs-pict #t)
+
+@section{Pictures}
+
+@tt{main.rkt} provides several @racketmodname[pict]s,
+with some options.
+
+@section{Slides}
+
+To show a slide that demos the pict, run
+@tt{main.rkt} on the command-lide, or use
+
+@racketblock[
+ @#,hash-lang[] @#,racketmodname[racket]
+ (require (submod lang-slide/main main))]
+
+@tt{hudak-quote.rkt} has a slideshow slide that uses
+the picture along with a quote from Paul Hudak.
+
+@section{PNG}
+
+@tt{mk-img.rkt} generates a PNG of the image.
+
+@section{Regenerating the data}
+
+@tt{find.rkt} regenerates @tt{lang.plain} and
+@tt{lang-colors.rktd} automatically when run.