doc: fix link to hugepage mapping from Linux guide

[ upstream commit a886540e5ab5b6e342b628180a9d9a5379847087 ]

As reported by Alessio, the link to the hugepage mapping page is broken.

Fixes: 979bb5d ("doc: add more instructions for running as non-root")

Reported-by: Alessio Igor Bogani <alessio.bogani@elettra.eu>
Signed-off-by: David Marchand <david.marchand@redhat.com>

.mailmap

@@ -44,6 +44,7 @@ Aleksandr Miloshenko <a.miloshenko@f5.com>
 Aleksey Baulin <aleksey.baulin@gmail.com>
 Aleksey Katargin <gureedo@gmail.com>
 Ales Musil <amusil@redhat.com>
+Alessio Igor Bogani <alessio.bogani@elettra.eu>
 Alexander Bechikov <asb.tyum@gmail.com>
 Alexander Belyakov <abelyako@gmail.com>
 Alexander Chernavin <achernavin@netgate.com>

doc/guides/linux_gsg/enable_func.rst

@@ -85,8 +85,7 @@ need to be adjusted in order to ensure normal DPDK operation:
 The above limits can usually be adjusted by editing
 ``/etc/security/limits.conf`` file, and rebooting.
 
-See `Hugepage Mapping <hugepage_mapping>`_
-section to learn how these limits affect EAL.
+See :ref:`Hugepage Mapping <hugepage_mapping>` section to learn how these limits affect EAL.
 
 Device Control
 ~~~~~~~~~~~~~~