README in kgio-2.9.3 vs README in kgio-2.10.0

@@ -1,17 +1,18 @@
 = kgio - kinder, gentler I/O for Ruby
 
 kgio provides non-blocking I/O methods for Ruby without raising
 exceptions on EAGAIN and EINPROGRESS.  It is intended for use with the
-Unicorn and Rainbows! Rack servers, but may be used by other
-applications (that run on Unix-like platforms).
+unicorn Rack server, but may be used by other applications (that run on
+Unix-like platforms).
 
 == Features
 
 * Can avoid expensive exceptions on common EAGAIN/EINPROGRESS errors,
   returning :wait_readable or :wait_writable instead.
   These exceptions got more expensive to hit under Ruby 1.9.2
-  (but were fixed in Ruby 1.9.3 and later to 1.9.1 performance levels)
+  (but were fixed in Ruby 1.9.3 and later to 1.9.1 performance levels,
+   which were still bad)
 
 * Returns the unwritten portion of the string on partial writes,
   making it ideal for buffering unwritten data.
 
 * May call any method defined to be "kgio_wait_writable" or