I am new to this and wanted to ask something regarding the description of the process. I have been able to convert the Strava-File into a .fit-file, however I read that it should be possible automatically, if I login into the tool. I just simply don't find a way to login

It is also written in the description of "How to Transfer a Peloton File to Training Peaks":
1) Go to this page
2) Connect the tool to your strava account ....
I would love to do that, but just simply don't see where I can do that (I might a blind chicken ...).
Thanks in advance for your help.