chore(docs): add Quick Start section to README

Added a 'Quick Start' section to the README for easier project setup.

Note, this is the same link reachable from https://bazel.build/start

README.rst

diff --git a/README.rst b/README.rst
index e1b5bc8..e7ee37f 100644
--- a/README.rst
+++ b/README.rst
@@ -164,6 +164,10 @@
 
 The ``master`` branch is only guaranteed to work with the latest version of Bazel.
 
+Quick Start
+-----------
+
+The fastest way to try this in an empty project is to click the green "Use this template" button on https://github.com/bazel-starters/go.
 
 Setup
 -----