docs: update the yocto version in overview.rst

Issud-ID: INF-293

Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Change-Id: I8009a878a19ce8421a64ec3dbfcf317d7c94e29f
diff --git a/docs/overview.rst b/docs/overview.rst
index 56de5a6..55c7cea 100644
--- a/docs/overview.rst
+++ b/docs/overview.rst
@@ -134,10 +134,10 @@
 Multi OS and Deployment Configurations
 --------------------------------------
 
-The INF project supports Multi OS and currently the following OS are supported:
+* The INF project supports Multi OS and currently the following OS are supported:
 
- - CentOS 7
- - Yocto 2.6
+   - CentOS 7
+   - Yocto 2.7 (warrior)
 
 A variety of deployment configuration options are supported: