docs: Update title of external tutorial.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173224 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/tutorial/index.rst b/docs/tutorial/index.rst
index a7e2c4f..69a9aee 100644
--- a/docs/tutorial/index.rst
+++ b/docs/tutorial/index.rst
@@ -25,7 +25,7 @@
 External Tutorials
 ==================
 
-`Write An LLVM Backend Tutorial For Cpu0 <http://jonathan2251.github.com/lbd/>`_
+`Tutorial: Creating an LLVM Backend for the Cpu0 Architecture <http://jonathan2251.github.com/lbd/>`_
    A step-by-step tutorial for developing an LLVM backend. Under
    active development at `<https://github.com/Jonathan2251/lbd>`_ (please
    contribute!).