with Debian dir 8c463e5b82a879fb29dc4dcca6d0c1118906875d

with Debian dir f0fbbe3c643b76293ac22aeaeea210bf55d8519a

with Debian dir 648e5f8fbbe08ca613bdeb0460f8d5441602d623

with Debian dir b14d6f7130e69b223e510b35603cbfa2f06c9e5d

related to T1330

used by the swh-docs to generate images and schemas when building the
whole documentation.

to prevent sphinx from complaining about these not being included.

Update to upstream version '0.0.29'
with Debian dir ceb2d9a6541ffae00bdd235b7dcfdb7f924f9ceb

to the benefit of MultiHash api

Update to upstream version '0.0.28'
with Debian dir 75caafbeb327212cc04a894a2b7e4f891c33f326

Summary: to make sphinx happy.

Test Plan: make -C docs

Reviewers: ardumont

Reviewed By: ardumont

Differential Revision: https://forge.softwareheritage.org/D571

double back-quote (``) are not interpreted when inside a emphasis block.

This prevent from requiring a too much recent tox version to fire the
tests, especially this allows to run tests using stretch's tox version.

Promote "Resolution" to a new top-level section, because it's now rather
voluminous.

As part of this document the resolver limitations of identifiers.org, that get
in the way of PID contextual information.

Closes T1015
Closes T1223