[PATCH 4/6] doc: add some chapter labels

[Federico Vaga]

The idea is to make it easier to create references (doc-guide does the same).
This will be used, for example but not only, in translations to point to
the main document.

Signed-off-by: Federico Vaga <federico.vaga@xxxxxxxxxx>
---
 Documentation/index.rst                | 2 ++
 Documentation/kernel-hacking/index.rst | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/Documentation/index.rst b/Documentation/index.rst
index f7ab4d6a281e..245ab83d0e6f 100644
--- a/Documentation/index.rst
+++ b/Documentation/index.rst
@@ -3,6 +3,8 @@
    You can adapt this file completely to your liking, but it should at least
    contain the root `toctree` directive.
 
+.. _linux_doc:
+
 The Linux Kernel documentation
 ==============================
 
diff --git a/Documentation/kernel-hacking/index.rst b/Documentation/kernel-hacking/index.rst
index fcb0eda3cca3..f53027652290 100644
--- a/Documentation/kernel-hacking/index.rst
+++ b/Documentation/kernel-hacking/index.rst
@@ -1,3 +1,5 @@
+.. _kernel_hacking:
+
 =====================
 Kernel Hacking Guides
 =====================
-- 
2.14.4