docs: add arch doc directories to the index

Now that several arch documents were converted to ReST,
add their indexes to Documentation/index.rst and remove the
:orphan:  from them.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

1 files changed, 0 insertions, 2 deletions

diff --git a/Documentation/arm64/index.rst b/Documentation/arm64/index.rst
index 018b7836ecb7..96b696ba4e6c 100644
--- a/Documentation/arm64/index.rst
+++ b/Documentation/arm64/index.rst
@@ -1,5 +1,3 @@
-:orphan:
-
 ==================
 ARM64 Architecture
 ==================