Additional updates to docs links

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/docs/architecture/testing/test-framework.md b/docs/architecture/testing/test-framework.md
index c4178fa..c537951 100644
--- a/docs/architecture/testing/test-framework.md
+++ b/docs/architecture/testing/test-framework.md
@@ -6,7 +6,7 @@
 
 ## Unit tests
 
-See <https://tls.mbed.org/kb/development/test_suites>
+See <https://mbed-tls.readthedocs.io/en/latest/kb/development/test_suites>
 
 ### Unit test descriptions