Update README.md

Author: Josh-G

README.md

@@ -20,7 +20,7 @@ The available options can be seen in the code. There is also functionality to ha
 
 ### Docker Support
 
-In order to run chrome-pdf inside a Docker container, you will have to disable the sandbox feature by setting the `sandbox` option to `"false"` (string not boolean).
+In order to run chrome-pdf inside a Docker container, you will have to disable the sandbox feature by setting the `sandbox` option to `false`.
 
 ## Examples