Fix the Named Metadata example to make it clear which specific
construct is the named metadata.

llvm-svn: 108263
diff --git a/llvm/docs/LangRef.html b/llvm/docs/LangRef.html
index 0eee86e..4c635d3 100644
--- a/llvm/docs/LangRef.html
+++ b/llvm/docs/LangRef.html
@@ -954,7 +954,9 @@
 
 <h5>Syntax:</h5>
 <pre class="doc_code">
+; An unnamed metadata node, which is referenced by the named metadata.
 !1 = metadata !{metadata !"one"}
+; A named metadata.
 !name = !{null, !1}
 </pre>