Revert "remove travis-ci badge"
Revert "remove travis-ci badge"

This reverts commit be28da9430fc3943c1a3efce87f8250df7b03d85.

Freeyourgadget/Gadgetbridge,Freeyourgadget/Gadgetbridge,Freeyourgadget/Gadgetbridge,Freeyourgadget/Gadgetbridge