Fix some broken links

llvm-svn: 14306
diff --git a/llvm/docs/LangRef.html b/llvm/docs/LangRef.html
index 5dfc953..b71d3e1 100644
--- a/llvm/docs/LangRef.html
+++ b/llvm/docs/LangRef.html
@@ -1942,7 +1942,7 @@
 <p>The '<tt>llvm.va_copy</tt>' intrinsic works just like the <tt>va_copy</tt>
 macro available in C.  In a target-dependent way, it copies the source
 <tt>va_list</tt> element into the returned list.  This intrinsic is necessary
-because the <tt><a href="i_va_start">llvm.va_start</a></tt> intrinsic may be
+because the <tt><a href="#i_va_start">llvm.va_start</a></tt> intrinsic may be
 arbitrarily complex and require memory allocation, for example.</p>
 
 </div>