docs: Introduce cascading style <div> and <p> continued on <h[2-5]>.

<h2>Section Example</h2>
<div> <!-- h2+div is applied -->
<p>Section preamble.</p>

<h3>Subsection Example</h3>
<p> <!-- h3+p is applied -->
Subsection body
</p>

<!-- End of section body -->
</div>

FIXME: Care H5 better.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130040 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/tutorial/LangImpl6.html b/docs/tutorial/LangImpl6.html
index 510d9dd..39264cf 100644
--- a/docs/tutorial/LangImpl6.html
+++ b/docs/tutorial/LangImpl6.html
@@ -37,7 +37,7 @@
 <h2><a name="intro">Chapter 6 Introduction</a></h2>
 <!-- *********************************************************************** -->
 
-<div class="doc_text">
+<div>
 
 <p>Welcome to Chapter 6 of the "<a href="index.html">Implementing a language
 with LLVM</a>" tutorial.  At this point in our tutorial, we now have a fully
@@ -63,7 +63,7 @@
 <h2><a name="idea">User-defined Operators: the Idea</a></h2>
 <!-- *********************************************************************** -->
 
-<div class="doc_text">
+<div>
 
 <p>
 The "operator overloading" that we will add to Kaleidoscope is more general than
@@ -128,7 +128,7 @@
 <h2><a name="binary">User-defined Binary Operators</a></h2>
 <!-- *********************************************************************** -->
 
-<div class="doc_text">
+<div>
 
 <p>Adding support for user-defined binary operators is pretty simple with our
 current framework.  We'll first add support for the unary/binary keywords:</p>
@@ -345,7 +345,7 @@
 <h2><a name="unary">User-defined Unary Operators</a></h2>
 <!-- *********************************************************************** -->
 
-<div class="doc_text">
+<div>
 
 <p>Since we don't currently support unary operators in the Kaleidoscope
 language, we'll need to add everything to support them.  Above, we added simple
@@ -494,7 +494,7 @@
 <h2><a name="example">Kicking the Tires</a></h2>
 <!-- *********************************************************************** -->
 
-<div class="doc_text">
+<div>
 
 <p>It is somewhat hard to believe, but with a few simple extensions we've
 covered in the last chapters, we have grown a real-ish language.  With this, we 
@@ -799,7 +799,7 @@
 <h2><a name="code">Full Code Listing</a></h2>
 <!-- *********************************************************************** -->
 
-<div class="doc_text">
+<div>
 
 <p>
 Here is the complete code listing for our running example, enhanced with the