Add the bilby-mcmc guide and fix some other minor documentation bugs

See merge request !1001

Resolve "bilby_mcmc not able to use priors with infinite support"

Closes #590

See merge request !1004

Add nested samples to multinest result

See merge request !1006

Resolve "Marginalized parameter reconstruction broken"

Closes #598

See merge request !1016

Add an option to use print rather than tqdm for dynesty

Closes #543

See merge request !937

Add tests of distance marginalized likelihood

See merge request !1018

Enable the Beta distribution to accept multidimensional arrays

See merge request !1007

Improve the bilby_result interface

See merge request !992

Temporary pin astropy & remove python 3.6 support

See merge request !1008

Reinitialize prior dict when reconstructed from json

See merge request !984

Resolve "Documentation missing for `setup_logger`"

Closes #581

See merge request !991

typo fix in earth light crossing

See merge request !1003

Resolve "Need at least scipy 1.5.0 for ks_1samp"

Closes #587

See merge request !999

Fix zero spin conversion

See merge request !1002

Resolve "Tutorial has incorrect documentation"

Closes #545

See merge request lscsoft/bilby!994

Remove the KDE proposal check

See merge request !993

Add zeus-mcmc to docker files

See merge request lscsoft/bilby!966

I deleted some redundant spaces and added a priors.pop for mass_ratio

See merge request !997

Add the code spell pre-commit and fix all existing spelling errors

See merge request !996

Allow logtrapzexp to work on a non-uniform grid

See merge request !983