Reference using `citet` instead of `cite` in Sec.9.1

[Antoine-Zimmermann]

In the 1st paragraph of Section 9.1, there is:

We now discuss two key sets of publishing principles: the FAIR Principles Wilkinson et al. [2016], and the ...

The reference should look like "FAIR Principles [Wilkinson et al., 2016]" (which is achieved using cite instead of citet).