Mention HavePrefix and HaveSuffix in CHANGELOG

CHANGELOG.md

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 09a4aef..cfbde1f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 - Added `BeSent` which attempts to send a value down a channel and fails if the attempt blocks.  Can be paired with `Eventually` to safely send a value down a channel with a timeout.
 - `Ω`, `Expect`, `Eventually`, and `Consistently` now immediately `panic` if there is no registered fail handler.  This is always a mistake that can hide failing tests.
 - `Receive()` no longer errors when passed a closed channel, it's perfectly fine to attempt to read from a closed channel so Ω(c).Should(Receive()) always fails and Ω(c).ShoudlNot(Receive()) always passes with a closed channel.
+- Added `HavePrefix` and `HaveSuffix` matchers.
 
 ## 1.0 (8/2/2014)