docs/*.html: Make W3C HTML 4.01 Strict more compliant.

FIXME: The logo handling in ReleaseNotes.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129208 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/SourceLevelDebugging.html b/docs/SourceLevelDebugging.html
index 2eb9aec..aed4294 100644
--- a/docs/SourceLevelDebugging.html
+++ b/docs/SourceLevelDebugging.html
@@ -804,7 +804,7 @@
 </pre>
 
 <p>This intrinsic provides information about a local element (ex. variable.) The
-   first argument is metadata holding alloca for the variable.</tt>. The
+   first argument is metadata holding alloca for the variable. The
    second argument is metadata containing description of the variable. </p>
 </div>