README: Don't list bos as the maintainer.

bergmark · bergmark · commit 728da76d8d04 · 2018-03-29T18:34:36.000+02:00
diff --git a/README.markdown b/README.markdown
@@ -24,5 +24,4 @@ See what's changed in recent (and upcoming) releases:
 
 # Authors
 
-This library is written and maintained by Bryan O'Sullivan,
-<bos@serpentine.com>.
+This library was originally written by Bryan O'Sullivan.
