docs: Decouple refrences from /docs folder

Signed-off-by: Anton Komlev <anton.komlev@arm.com>
Change-Id: I1955201382074eb9e6dd80aadbc456eb09aecb22
diff --git a/docs/contributing/code_review_guide.rst b/docs/contributing/code_review_guide.rst
index 08d72a28..cfc9f4d 100644
--- a/docs/contributing/code_review_guide.rst
+++ b/docs/contributing/code_review_guide.rst
@@ -4,7 +4,7 @@
 The purpose of this document is to clarify design items to be reviewed during
 the code review process.
 
-Please contact :doc:`maintainers </docs/contributing/maintainers>` or write an e-mail
+Please contact :doc:`maintainers </contributing/maintainers>` or write an e-mail
 thread on the `TF-M mailing list <mailto:tf-m@lists.trustedfirmware.org>`_ for
 any questions.
 
@@ -13,9 +13,9 @@
 **********************
 The prerequisites before going to the review stage:
 
-- Read the :doc:`Contributing Process </docs/contributing/contributing_process>`
+- Read the :doc:`Contributing Process </contributing/contributing_process>`
   to know basic concepts.
-- Read the :doc:`Source Structure </docs/technical_references/design_docs/source_structure>`
+- Read the :doc:`Source Structure </technical_references/design_docs/source_structure>`
   for structure related reference.
 
 The review guidelines consist of these items: