Fix outdated README.md.
diff --git a/README.md b/README.md
index a77e004..2d89d30 100644
--- a/README.md
+++ b/README.md
@@ -54,6 +54,6 @@
 
 The Apache Newt tool should indicate the location of the generated blinky
 executable.  Since the simulator does not have an LED to blink, this version of
-blinky is not terribly exciting (no observable behavior!).  To learn how to
-build blinky for actual hardware, please see the [Getting Started
+blinky is not terribly exciting!.  To learn how to build blinky for actual
+hardware, please see the [Getting Started
 Guide](http://mynewt.apache.org/os/get_started/introduction/).