Update docs/design_guide.rst

Co-authored-by: Kattni <[email protected]>

Author: jposada202020

docs/design_guide.rst

@@ -317,7 +317,7 @@ definition as shown in the following example:
 
 
 To include references to CircuitPython modules, cookiecutter creates an entry in the
-intersphinx_mapping entry in the ``conf.py`` file located within the ``docs`` directory.
+intersphinx_mapping section in the ``conf.py`` file located within the ``docs`` directory.
 To add different types outside CircuitPython you need to add more definition to intersphinx_mapping::