Fix documented unit for image height/width

CHANGELOG.md

@@ -35,6 +35,7 @@ v0.15.0 (?? ??? 2018)
 
 ### Changed
 - Remove zend-stdlib dependency @Trainmaster #1284
+- The default unit for `\PhpOffice\PhpWord\Style\Image` changed from `px` to `pt`.
 
 
 v0.14.0 (29 Dec 2017)

docs/styles.rst

@@ -149,10 +149,10 @@ Image
 Available Image style options:
 
 - ``alignment``. See ``\PhpOffice\PhpWord\SimpleType\Jc`` class for the details.
-- ``height``. Height in pixels.
+- ``height``. Height in *pt*.
 - ``marginLeft``. Left margin in inches, can be negative.
 - ``marginTop``. Top margin in inches, can be negative.
-- ``width``. Width in pixels.
+- ``width``. Width in *pt*.
 - ``wrappingStyle``. Wrapping style, *inline*, *square*, *tight*, *behind*, or *infront*.
 - ``wrapDistanceTop``. Top text wrapping in pixels.
 - ``wrapDistanceBottom``. Bottom text wrapping in pixels.