fix formatting and a validation fail

llvm-svn: 99640

Author: ggreif

llvm/docs/ProgrammersManual.html

@@ -1960,12 +1960,12 @@
     errs() << *Inst << "\n";
   }
 </pre>
-Note that dereferencing a <tt>Value::use_iterator</tt is not a very cheap
+</div>
+
+Note that dereferencing a <tt>Value::use_iterator</tt> is not a very cheap
 operation. Instead of performing <tt>*i</tt> above several times, consider
 doing it only once in the loop body and reusing its result.
 
-</div>
-
 <p>Alternatively, it's common to have an instance of the <a
 href="/doxygen/classllvm_1_1User.html">User Class</a> and need to know what
 <tt>Value</tt>s are used by it.  The list of all <tt>Value</tt>s used by a