doc: Update Linaro release mentioned on index page

The version of the Linaro release that is used for testing was
updated in 35010bb8 and the user guide was updated with the
correct version, however the version is also mentioned on the
index page and that was missed. Update the index page with the
new version.

We can come back and de-duplicate this content later, to ease
future maintenance.

Change-Id: I3fe83d7a1c59ab8d3ce2b18bcc23e16c93f7af97
Signed-off-by: Paul Beesley <paul.beesley@arm.com>
diff --git a/docs/index.rst b/docs/index.rst
index 4f0f6ef..3cdb2b2 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -197,7 +197,7 @@
 The Foundation FVP can be downloaded free of charge. The Base FVPs can be
 licensed from Arm. See the `Arm FVP website`_.
 
-All the above platforms have been tested with `Linaro Release 18.04`_.
+All the above platforms have been tested with `Linaro Release 19.06`_.
 
 This release also contains the following platform support:
 
@@ -288,7 +288,7 @@
 .. _Juno Arm Development Platform: http://www.arm.com/products/tools/development-boards/versatile-express/juno-arm-development-platform.php
 .. _Arm FVP website: FVP_
 .. _FVP: https://developer.arm.com/products/system-design/fixed-virtual-platforms
-.. _Linaro Release 18.04: https://community.arm.com/dev-platforms/b/documents/posts/linaro-release-notes-deprecated#LinaroRelease18.04
+.. _Linaro Release 19.06: http://releases.linaro.org/members/arm/platforms/19.06
 .. _OP-TEE Secure OS: https://github.com/OP-TEE/optee_os
 .. _NVIDIA Trusted Little Kernel: http://nv-tegra.nvidia.com/gitweb/?p=3rdparty/ote_partner/tlk.git;a=summary
 .. _Trusty Secure OS: https://source.android.com/security/trusty