the `tutorial.md` change smells fishy but that's what's suggested... [1]
```
17:21:21 /var/lib/jenkins/workspace/DDOC/build-on-diff/swh-docs/docs/swh-fuse/tutorial.md:85: WARNING: hardcoded link 'https://archive.softwareheritage.org/api/' could be replaced by an extlink (try using ':swh_web:`api/`' instead)
```
[1] https://jenkins.softwareheritage.org/job/DDOC/job/build-on-diff/62/console
Related to D6967