[docs] Fix some malformed links.

Patch by Stanislav Manilov!

llvm-svn: 232546
diff --git a/llvm/docs/tutorial/OCamlLangImpl3.rst b/llvm/docs/tutorial/OCamlLangImpl3.rst
index fd9f0e5..10d463b 100644
--- a/llvm/docs/tutorial/OCamlLangImpl3.rst
+++ b/llvm/docs/tutorial/OCamlLangImpl3.rst
@@ -65,7 +65,7 @@
 
 The ``Codegen.builder`` object is a helper object that makes it easy to
 generate LLVM instructions. Instances of the
-```IRBuilder`` <http://llvm.org/doxygen/IRBuilder_8h-source.html>`_
+`IRBuilder <http://llvm.org/doxygen/IRBuilder_8h-source.html>`_
 class keep track of the current place to insert instructions and has
 methods to create new instructions.