Prepare CRAN release (#588)

* Prepare CRAN release

* use R 4.0

Prepare CRAN release (#560)

* Prepare CRAN release

* styler, remove remotes

* styler

Prepare CRAN release (#531)

* Prepare CRAN release

* update package requirements

Prepare CRAN release (#507)

Update NEWS.md

prepare CRAN release (#492)

* prepare CRAN release

* update version requirements

* use remotes for now, for checks

* Update test-backtransform_invlink.R

* update snaps

* remove remotes

typo

Prepare CRAN release (#369)

* Prepare CRAN release

* styler

* structure code

* comment code, simplify code

* minor print

* Update get_marginalmeans.R

* fix issues with latest marginaleffects, update tests

* Update get_marginaltrends.R

* update readme

* update test

* fix johnson neymann

* update tests

* update readme

* update readme

* fix

* Update DESCRIPTION

* styler

* remotes

* rename marginalization -> estimate

* "average" -> "sample"

* Update WORDLIST

* Update get_marginalcontrasts.R

* update snapshots

* update snapshots

* update

* Fix #377

* fix test

* fix

* harmonize order of arguments

* typoe

* styler

* add ATT/ATU/ATE options

* more informative error for g-computation

* minor

* lintr

* add test

* add test

Merge pull request #266 from easystats/rc_0_8_9

Prepare CRAN release

bump version number to non dev @strengejacke