Updating README.md with known issues

README.md

@@ -91,6 +91,12 @@ Bugs
 ------------
 - Tests are incomplete
 
+Known issues
+------------
+
+**Output of wkhtmltopdf is being added to resulting pdf** ([Issue #19](https://github.com/jhonnymertz/java-wkhtmltopdf-wrapper/issues/19))
+- Starting from 1.1.10.RELEASE version, there is a method `saveAsDirect(String path)`, which executes wkhtmltopdf passing the `path` as output for wkhtmltopdf, instead of the standard input `-`. This saves the results directly to the specified file `path`.
+
 License
 ------------
 This project is available under MIT Licence.