typo (#212)

thanks

Author: Josef-Friedrich

README.md

@@ -75,7 +75,7 @@ Triggered when an internal link is clicked
 ### Public methods
 
 #### print(dpi, pageList) * _experimental_ *
-  * `dpi`: the print rezolution of the document (try 100).
+  * `dpi`: the print resolution of the document (try 100).
   * `pageList`: the list (array) of pages to print.
 
 ### Public static methods