Update news/shellcheck_hints.rst
Update news/shellcheck_hints.rst

Co-Authored-By: Christopher J. Wright <4edaa3d02cd0de2a9b349926c64fa232ab9de54b@gmail.com>
conda-forge/conda-smithy,ocefpaf/conda-smithy,conda-forge/conda-smithy,ocefpaf/conda-smithy