ropensci/targets: Documentation patch

targets 0.8.1 New features Add arguments strict and silent to allow tar_load() and tar_load_raw() to bypass targets that cannot be loaded. Enhancements Improve tidyselect docs in tar_make() (#640, @dewoller). Use namespaced call to tar_dir() in tar_test() (#642, @billdenney). Improve tar_assert_target_list() error message (@kkami1115, #654). Throw an informative error if a target name starts with a dot (@dipterix, #662). Improve help files of tar_destroy() and related cleanup functions (@billdenney, #675)