Add ACLE link to ARM documentation sections

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179006 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/CompilerWriterInfo.rst b/docs/CompilerWriterInfo.rst
index 681777c..e9a7bc8 100644
--- a/docs/CompilerWriterInfo.rst
+++ b/docs/CompilerWriterInfo.rst
@@ -20,11 +20,15 @@
 
 * `ABI <http://www.arm.com/products/DevTools/ABI.html>`_
 
+* `ARM C Language Extensions <http://infocenter.arm.com/help/topic/com.arm.doc.ihi0053a/IHI0053A_acle.pdf>`_
+
 AArch64
 -------
 
 * `ARMv8 Instruction Set Overview <http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.genc010197a/index.html>`_
 
+* `ARM C Language Extensions <http://infocenter.arm.com/help/topic/com.arm.doc.ihi0053a/IHI0053A_acle.pdf>`_
+
 Itanium (ia64)
 --------------