docs: Decouple refrences from /docs folder

Signed-off-by: Anton Komlev <anton.komlev@arm.com>
Change-Id: I1955201382074eb9e6dd80aadbc456eb09aecb22
diff --git a/docs/contributing/coding_guide.rst b/docs/contributing/coding_guide.rst
index f208fc0..5b75d36 100644
--- a/docs/contributing/coding_guide.rst
+++ b/docs/contributing/coding_guide.rst
@@ -18,7 +18,7 @@
 The guidance below is provided as a help. It isn't meant to be a definitive
 list.
 
-As implied in the :doc:`contributing guide </docs/contributing/contributing_process>`
+As implied in the :doc:`contributing guide </contributing/contributing_process>`
 maintainers have the right to decide on what's acceptable in case of any
 divergence.