Docs: Refine tfm_sw_requirement.rst

Simplify the tfm software requirement document and change the document
to 'tfm_getting_started.rst', let it more
suitable for new starter.

Signed-off-by: Summer Qin <summer.qin@arm.com>
Change-Id: I10379aa92ac2c6cd784f0fd1b1b5431243716d74
diff --git a/docs/contributing/contributing_process.rst b/docs/contributing/contributing_process.rst
index 002df7e..8bd7e52 100644
--- a/docs/contributing/contributing_process.rst
+++ b/docs/contributing/contributing_process.rst
@@ -26,7 +26,7 @@
 
   - Clone the TF-M code on your own machine from `TF-M git repository
     <https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git>`_.
-  - Follow the :doc:`SW Requirements </docs/getting_started/tfm_sw_requirement>`,
+  - Follow the :doc:`TF-M getting started </docs/getting_started/tfm_getting_started>`,
     :doc:`Build Instructions </docs/technical_references/instructions/tfm_build_instruction>` and
     :doc:`Coding Guide </docs/contributing/coding_guide>` for the TF-M project.
   - Make your changes in logical chunks to help reviewers. Each commit should
diff --git a/docs/contributing/doc_guidelines.rst b/docs/contributing/doc_guidelines.rst
index 41f4e05..607097d 100644
--- a/docs/contributing/doc_guidelines.rst
+++ b/docs/contributing/doc_guidelines.rst
@@ -20,7 +20,7 @@
 
 - If the patch modifies a present file, the file's style should be followed
 - If creating a new file,
-  :doc:`integration guide </docs/getting_started/tfm_sw_requirement>` can be used as a reference.
+  :doc:`integration guide </docs/integration_guide/tfm_integration_guide>` can be used as a reference.
 - When a new style is to be expressed, consult the `Python Documentation Guidelines`_
 
 *************
@@ -186,7 +186,7 @@
    +--------------+--------------+-------------+
 
 Other types of tables such as list-tables and csv-tables are also permitted, as
-seen on :doc:`/docs/getting_started/tfm_sw_requirement` and
+seen on :doc:`/docs/getting_started/tfm_getting_started` and
 :doc:`/docs/releases/1.0`
 
 
@@ -236,7 +236,7 @@
 
 .. code-block:: restructuredtext
 
-    :doc:`integration guide </docs/getting_started/tfm_sw_requirement>`
+    :doc:`integration guide </docs/integration_guide/tfm_integration_guide>`
 
 The path is relative to the root of the Trusted Firmware-M code.
 
@@ -248,7 +248,7 @@
 
 .. code-block:: restructuredtext
 
-    :ref:`docs/getting_started/tfm_sw_requirement:Tool & Dependency overview`
+    :ref:`docs/getting_started/tfm_getting_started:Tool & Dependency overview`
 
 This can also be used to quickly scroll to the specific section of the current
 document. This technique can be used to add complex table in the bottom of a
diff --git a/docs/contributing/tfm_design_proposal_process.rst b/docs/contributing/tfm_design_proposal_process.rst
index 49ff7e7..0c10b7b 100644
--- a/docs/contributing/tfm_design_proposal_process.rst
+++ b/docs/contributing/tfm_design_proposal_process.rst
@@ -69,8 +69,8 @@
 available locally. Setting up the documentation tools will allow pre-viewing the
 documentation file in preparation.
 For information on what tools are needed please refer to
-:doc:`sw requirements </docs/getting_started/tfm_sw_requirement>`. To see how to get
-a local copy of the TF-M repository please see
+:doc:`TF-M getting started </docs/getting_started/tfm_getting_started>`. To see
+how to get a local copy of the TF-M repository please see
 :doc:`build instructions </docs/technical_references/instructions/tfm_build_instruction>`
 
 Process steps