[TYPO3-doc] Screenshot rules and guidelines for Official Documentation

[Martin Holtz]

Hi,

> - set your browser's preferred language to English, so that the file
> upload fields don't have a "Durchsuchen..." button.
any hint how i do that?

i tried in about:config
general.useragent.locale=en_US

which does not change anything. I searched for an en_US language pack which 
i didnt find.

greetins,
martin