Deutsche Bahn requires API key

README.md

@@ -171,7 +171,7 @@ A collective list of JSON APIs for use in web development.
 |---|---|---|---|
 | Transport for London | TFL API | No | [Go!](https://api.tfl.gov.uk) |
 | Transport for Belgium | Belgian transport API | No | [Go!](https://hello.irail.be/api/) |
-| Transport for Germany | Deutsche Bahn (DB) API | No | [Go!](http://data.deutschebahn.com/apis/fahrplan/) |
+| Transport for Germany | Deutsche Bahn (DB) API | No, but `authKey` query string | [Go!](http://data.deutschebahn.com/apis/fahrplan/) |
 | Transport for Switzerland | Swiss public transport API | No | [Go!](https://transport.opendata.ch/) |
 | Transport for Budapest | Budapest public transport API | No | [Go!](http://docs.bkkfutar.apiary.io/) |
 | Transport for Norway | Norwegian transport API | No | [Go!](http://reisapi.ruter.no/help) |