[PATCH v3 3/3] docs: rcu: Increase toctree to 3

["Joel Fernandes (Google)" <joel@xxxxxxxxxxxxxxxxx>]

These documents are long and have various sections. Provide a good
toc nesting level.

Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx>
---
 Documentation/RCU/index.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/RCU/index.rst b/Documentation/RCU/index.rst
index 94427dc1f23d..5c99185710fa 100644
--- a/Documentation/RCU/index.rst
+++ b/Documentation/RCU/index.rst
@@ -5,7 +5,7 @@ RCU concepts
 ============
 
 .. toctree::
-   :maxdepth: 1
+   :maxdepth: 3
 
    rcu
    listRCU
-- 
2.22.0.709.g102302147b-goog