[Documentation] Fix markup problem in AMDGPUUsage.rst.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328116 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/docs/AMDGPUUsage.rst b/docs/AMDGPUUsage.rst
index 6d70cfa..d0671b0 100644 (file)
--- a/docs/AMDGPUUsage.rst
+++ b/docs/AMDGPUUsage.rst
@@ -1,4 +1,4 @@
-============================
+=============================
 User Guide for AMDGPU Backend
 =============================