Update readme for generated docs.

Author: akkartik

_ref/README

@@ -1,6 +1,3 @@
-This directory generates the Arc documentation published at
-http://arcdoc.eval.to/
-
 To generate the documentation after making changes to the .tem
 template files, run:
 
@@ -10,20 +7,8 @@ The resulting output will appear in the output/ directory.  You can
 open the output/index.html file directly in your web browser; you
 don't need to be running a web server.
 
-When you're happy with your changes commit them to Anarki.  We'll put
-together some system to automatically publish commits to Anarki to
-arcdoc.eval.to; in the meantime, ping <andrew.wilcox@gmail.com> to
-push the button.
-
-NOTE: I (Andrew) couldn't figure out how to run Anarki from the
-arcfn-docs directory, so I used the hackinator instead.  *You don't
-have to do this*.  Just fix generate.sh to use Anarki instead if you
-want.
-
-How the automatic process will work:  It will
- - pull the latest code from Anarki
- - run generate.sh
- - copy the contents of output/ to arcdoc.eval.to
+When you're happy with your changes, push to github to update
+http://arclanguage.github.io.
 
 This Arc documentation was originally written by Ken Shirriff
-<kens@arcfn.com>, and is now community supported in Anarki.
+<kens@arcfn.com>, and is now community-supported.