add some links to the tutorial index and between chapters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43730 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/tutorial/LangImpl4.html b/docs/tutorial/LangImpl4.html
index 6bafacb..7b02faa 100644
--- a/docs/tutorial/LangImpl4.html
+++ b/docs/tutorial/LangImpl4.html
@@ -14,6 +14,7 @@
<div class="doc_title">Kaleidoscope: Adding JIT and Optimizer Support</div>
<ul>
+<li><a href="index.html">Up to Tutorial Index</a></li>
<li>Chapter 4
<ol>
<li><a href="#intro">Chapter 4 Introduction</a></li>
@@ -23,6 +24,8 @@
<li><a href="#code">Full Code Listing</a></li>
</ol>
</li>
+<li><a href="LangImpl5.html">Chapter 5</a>: Extending the Language: Control
+Flow</li>
</ul>
<div class="doc_author">