Correct initializer in example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146041 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/WritingAnLLVMPass.html b/docs/WritingAnLLVMPass.html
index 66b98b6..d508a80 100644
--- a/docs/WritingAnLLVMPass.html
+++ b/docs/WritingAnLLVMPass.html
@@ -284,7 +284,7 @@
 <div class="doc_code">
 <pre>
     static char ID;
-    Hello() : FunctionPass(ID) {}
+    Hello() : FunctionPass(&amp;ID) {}
 </pre>
 </div>