Fix doc

Author: dvlpp

docs/guide/form-fields/upload.md

@@ -93,7 +93,7 @@ The second argument, `$croppableFileTypes`, provide a way to limit the crop conf
 
 If true and if the upload has a thumbnail, it is limited to 60px high (to compact in a list item, for instance).
 
-### `setImageOptimizeImage(bool $imageOptimize = true)`
+### `setImageOptimize(bool $imageOptimize = true)`
 
 If true, some optimization will be applied on the uploaded images (in order to reduce files weight). It relies on spatie's [image-optimizer](https://github.com/spatie/image-optimizer). Please note that you will need some of these packages on your system:
 - [JpegOptim](http://freecode.com/projects/jpegoptim)