Added url to the p2updatesite

Change-Id: I63ba3bdb6c0f89aa29fa6cc04b724c72bf11468a

README.md

diff --git a/README.md b/README.md
index 0471a9c..a5489ca 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,15 @@
 It is highly experimental and support is minimal. However, we are happy
 to accept contribution to make this support grows to a better shape.
 
+## Installation
+
+In Eclipse, run the software installer and add the following update
+site:
+[http://bazelbuild.github.io/e4b/p2updatesite](http://bazelbuild.github.io/e4b/p2updatesite).
+
+Then select "Eclipse 4 Bazel" under the "Uncategorized category". This
+will install the Eclipse plugin on your Eclipse.
+
 ## Missing features
 
 Interesting feature to add is first to be able to launch test from