Go to travelfeed.io and click "Login"

Click "continue"

Enter your Steem username and your private active key (preferable) or your password and click "Get started".

Click "Log in"

Click "Authorize"

You are now logged into TravelFeed. To use TravelFeed, you need to accept the terms of service, then you will see your TravelFeed Dashboard

After successful completion of the first login, future logins - also on other devices - will be easier and only require the posting key.