DOC: fix single when double ` should have been used

tacaswell · tacaswell · commit f48ad733843d · 2019-08-12T19:22:45.000-04:00
diff --git a/doc/devel/documenting_mpl.rst b/doc/devel/documenting_mpl.rst
@@ -425,8 +425,8 @@ As opposed to the numpydoc guide, parameters need not be marked as
 The optional aspect is already clear from the presence of a default value.
 More specifically
 
-- use `{name} : {type}, default: {val}` when possible.
-- use `{name} : {type}, optional` and describe the default in the text if
+- use ``{name} : {type}, default: {val}`` when possible.
+- use ``{name} : {type}, optional`` and describe the default in the text if
   in cannot be explained sufficiently in the above way.
 
 Use ``float`` for a type that can be any number.
