[PATCH v3 6/7] docs: Add remaining Documentation/*.txt at staging/index.rst

[Mauro Carvalho Chehab <mchehab+huawei@kernel.org>]

There are a few text files that aren't yet at the docs building
system.

Add those to the staging/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 Documentation/staging/index.rst | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/Documentation/staging/index.rst b/Documentation/staging/index.rst
index 8cc9d94b0a13..8e98517675ca 100644
--- a/Documentation/staging/index.rst
+++ b/Documentation/staging/index.rst
@@ -19,17 +19,14 @@ Unsorted Documentation
 Atomic Types
 ============
 
-.. include:: ../atomic_t.txt
-   :literal:
+.. literalinclude:: ../atomic_t.txt
 
 Atomic bitops
 =============
 
-.. include:: ../atomic_bitops.txt
-   :literal:
+.. literalinclude:: ../atomic_bitops.txt
 
 Memory Barriers
 ===============
 
-.. include:: ../memory-barriers.txt
-   :literal:
+.. literalinclude:: ../memory-barriers.txt
-- 
2.26.2