Release IsoriX 0.9.2

[courtiol]

Prepare for release:

• [x] git pull
• [x] Check current CRAN check results
• [x] Polish NEWS
• [x] usethis::use_github_links()
• [x] urlchecker::url_check()
• [x] devtools::check(remote = TRUE, manual = TRUE)
• [x] devtools::check_win_devel()
• [x] revdepcheck::revdep_check(num_workers = 4)
• [x] Update cran-comments.md
• [x] git push
• [x] run styler:::style_active_pkg() for reformatting of the code according to styler::tidyverse_style()
• [x] run lintr::lint_package() for checking code in depth
• [x] run make check in terminal
• [x] check folder IsoriX.Rcheck and file in there
• [x] run tests/local_tests.R step-by-step
• [x] rebuilt bookdown to make sure all works in there too (open Rproj from the bookdown folder and follow instructions in README)
• [x] update bookdown (open Rproj from the bookdown folder and follow instructions in README)
• [x] write email to Google Group (https://groups.google.com/g/IsoriX)

Submit to CRAN:

• [x] usethis::use_version('patch')
• [x] devtools::submit_cran()
• [x] Approve email

Wait for CRAN...

• [x] Accepted :tada:
• [x] usethis::use_github_release()
• [x] usethis::use_dev_version(push = TRUE)