Update reference.rst

specify the supported sctk version

Signed-off-by: Chin Yeung Li <[email protected]>

Author: chinyeungli

docs/source/reference.rst

@@ -772,3 +772,10 @@ Special Notes
 When using the field_filters configuration, all the standard required
 columns (about_resource and name) and the user defined required_fields
 need to be included.
+
+Notes
+=====
+The AboutCode Toolkit version 10.0.0 will work with input from Scancode Toolkit version 32.0.0 or later.
+If you are using an earlier version of Scancode Toolkit, specifically version 31 or older,
+it will only be compatible with prior versions of AboutCode Toolkit.
+