docs: add link to Shu Sugimoto's tutorial

[ci skip]

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

1 files changed, 3 insertions, 0 deletions

diff --git a/README.md b/README.md
index 4cb9e8af..ad376e4f 100644
--- a/README.md
+++ b/README.md
@@ -37,6 +37,9 @@ No dependency hell (library, package, etc) thanks to Go.
  * [Managing GoBGP with your favorite language](https://github.com/osrg/gobgp/blob/master/docs/sources/grpc-client.md)
  * [Using GoBGP as a Go Native BGP library](https://github.com/osrg/gobgp/blob/master/docs/sources/lib.md)
  * [Graceful Restart](https://github.com/osrg/gobgp/blob/master/docs/sources/graceful-restart.md)
+
+### Externals
+ * [Tutorial: Using GoBGP as an IXP connecting router](http://www.slideshare.net/shusugimoto1986/tutorial-using-gobgp-as-an-ixp-connecting-router)
  
 ## Community, discussion and support