In-line commenting not possible at the book web site

[DrMaggie]

In the README.md file (and echoed at https://open-science-training-handbook.gitbook.io/book), it says under the heading "Help us making the handbook better" that (quoting) "We welcome comments and feedback from everyone, irrespective of their expertise or background. The easiest way to do this is to leave a comment right here by touching any paragraph with your mouse pointer and then clicking on the plus sign appearing next to that paragraph.".
Now, this way of adding a comment doesn't work - neither here at GitHub nor at the web page linked above). (Maybe it works if you are somehow logged in, but this isn't applicable to normal users.)

[jcolomb]

indeed. same problem here. so I added comments as issues...

then I started to comment it on hypothes.is
https://via.hypothes.is/https://open-science-training-handbook.gitbook.io/book

pull request will follow