Docs: Updating references to DS-5, and other content

This patch is updating the references to DS-5 to
Arm Development Studio. The version numbers,
and user instructions have also been updated
to reflect the new name.

It is also adding proper documentation to the
appropriate arm developer pages for each toolchain,
as well as fixing other minor formatting issues
across documentation

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
Change-Id: I99fd4ff3f127e6fe9f1f5384245770637fe41c11
diff --git a/docs/getting_started/tfm_build_instruction.rst b/docs/getting_started/tfm_build_instruction.rst
index 70e6f86..6ca626c 100644
--- a/docs/getting_started/tfm_build_instruction.rst
+++ b/docs/getting_started/tfm_build_instruction.rst
@@ -25,10 +25,10 @@
 
 .. Note::
 
- - For building with Armclang compiler version 6.10.0, please follow the note
-   in :ref:`docs/getting_started/tfm_sw_requirement`.
+ - For building with Armclang compiler version 6.10.0+, please follow the note
+   in :doc:`software requirements <tfm_sw_requirement>`.
  - For building with the IAR toolchain, please see the notes in
-   :doc:`software requirements <tfm_build_instruction_iar>`
+   :doc:`IAR software requirements <tfm_build_instruction_iar>`
 
 .. _tfm_cmake_configuration: