sphinx: rename top level document in each manual

It is more common to call the top level document index.rst. This is
what this patch is doing, along with all required references fixup.

(From yocto-docs rev: 2cea7fbba9210479fc0387d7e1b80da9885558f0)

Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/documentation/dev-manual/dev-manual-start.rst b/documentation/dev-manual/dev-manual-start.rst
index 1c2314c430..053f09cdcd 100644
--- a/documentation/dev-manual/dev-manual-start.rst
+++ b/documentation/dev-manual/dev-manual-start.rst
@@ -344,7 +344,7 @@ going to use BitBake, see the
 section. If you are going
 to use the Extensible SDK, see the ":doc:`../sdk-manual/sdk-extensible`" Chapter in the Yocto
 Project Application Development and the Extensible Software Development
-Kit (eSDK) manual. If you want to work on the kernel, see the :doc:`../kernel-dev/kernel-dev`. If you are going to use
+Kit (eSDK) manual. If you want to work on the kernel, see the :doc:`../kernel-dev/index`. If you are going to use
 Toaster, see the ":doc:`../toaster-manual/toaster-manual-setup-and-use`"
 section in the Toaster User Manual.