Minor fix in readme.

Author: rczajka

README.textile

@@ -7,7 +7,7 @@ python-textile is a Python port of Textile, Dean Allen's humane web text generat
 h2. Installation
 
 Install the 'textile' folder on your python path, or @pip install textile@.
-Optional dependencies require PIL/Pillow (for checking images size)
+Optional dependencies include PIL/Pillow (for checking images size)
 and regex (for faster unicode-aware string matching).
 
 h2. Usage