Fix sloppy cut-and-paste

🤦🏼

docs/userguide/modularizing.rst

@@ -70,7 +70,7 @@ Key points to note:
   because you will not need to run Parsl when testing the code.
 
 - *Advanced*: Consider including Parsl decorators in the library if using complex workflow patterns,
-  :ref:`join apps <label-joinapp>` or such as functions which take :ref:`special arguments <special-kwargs>`.
+  such as :ref:`join apps <label-joinapp>` or functions which take :ref:`special arguments <special-kwargs>`.
 
 .. literalinclude:: examples/library/app.py
    :caption: library/app.py