fix typo in comment/docs

diff --git a/stylus_helpers.styl b/stylus_helpers.styl
index 4a351fa..df34bb0 100644 (file)
--- a/stylus_helpers.styl
+++ b/stylus_helpers.styl
@@ -91,7 +91,7 @@ space_evenly(line_height = 1.2em)
 //         </nav>
 //     styl:
 //         nav li
-//             sprite_rollover "images/nav.png" 150 35 2
+//             sprites_rollover "images/nav.png" 150 35 2
 sprites_rollover(image, width, height, count, v_offset = 0, h_offset = 0)
        width: unit(width, px)
        height: unit(height, px)