broken links in the doc

[foxmask]

fix broken links in the documentation, related to the issue #1478

i put <a name="foobar"></a> on each h1 and h2, because some h2 were also referenced in the welcome notebook of joplin

[laurent22]

Hmm, I think we should auto-generate these anchors, like GitHub does, or it will be difficult to maintain them whenever we change something.

[foxmask]

I understand so the Tools/build-website.js script should handle that. But I didn't see where nor how so I focused on the markdown files

[laurent22]

Fixed in 49c998d