try to fix the sphinx build some more

llvm-svn: 358156
diff --git a/llvm/docs/tutorial/MyFirstLanguageFrontend/LangImpl01.rst b/llvm/docs/tutorial/MyFirstLanguageFrontend/LangImpl01.rst
index 71ba932..8cf01c8 100644
--- a/llvm/docs/tutorial/MyFirstLanguageFrontend/LangImpl01.rst
+++ b/llvm/docs/tutorial/MyFirstLanguageFrontend/LangImpl01.rst
@@ -1,3 +1,5 @@
+:orphan:
+
 =====================================================
 Kaleidoscope: Kaleidoscope Introduction and the Lexer
 =====================================================