German nationality as lowercase

German nationality as lowercase.

In German it is: `deutsch` or `britisch` all in lowercase

Should that be fixed? 

[https://www.auswaertiges-amt.de/resource/blob/199312/034d5d28ea4015c59103c6e45c985ad0/staatennamen-data.pdf](https://www.auswaertiges-amt.de/resource/blob/199312/034d5d28ea4015c59103c6e45c985ad0/staatennamen-data.pdf)