Fixup debug information references.

llvm-svn: 227020
diff --git a/llvm/docs/tutorial/LangImpl7.rst b/llvm/docs/tutorial/LangImpl7.rst
index 141f138..7c2c4c4 100644
--- a/llvm/docs/tutorial/LangImpl7.rst
+++ b/llvm/docs/tutorial/LangImpl7.rst
@@ -856,5 +856,5 @@
 .. literalinclude:: ../../examples/Kaleidoscope/Chapter7/toy.cpp
    :language: c++
 
-`Next: Conclusion and other useful LLVM tidbits <LangImpl8.html>`_
+`Next: Extending the Language: Debug Information <LangImpl8.html>`_