docs: Initial Sphinx setup for Clang.
I don't think this will be visible just yet on <clang.llvm.org/docs/>
since I don't think that the necessary server-side setup has taken
place.
Don't shoot me over the theme. I don't want to duplicate LLVM's theme
into the clang repo at the moment, so I just used one of Sphinx's
default themes.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170042 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/.gitignore b/.gitignore
index 6be9976..ea2ff50 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,3 +30,5 @@
#==============================================================================#
# Clang extra user tools, which is tracked independently (clang-tools-extra).
tools/extra
+# Sphinx build products
+docs/_build