BUG 5681 : Typo in README file

TrivialFix
Repeated word in README file

Change-Id: Ic3563f68b804e6f0873c56c8b1e4eed233defab0
diff --git a/README.md b/README.md
index d428a68..bb7cd48 100644
--- a/README.md
+++ b/README.md
@@ -23,5 +23,5 @@
   controlled by distributed routing protocols such as BGP.
 * IP-Optical use case demonstration.
 
-Checkout out our [website](http://www.onosproject.org) and our
+Checkout our [website](http://www.onosproject.org) and our
 [tools](http://www.onosproject.org/software/#tools)