docs: suggest warming

Author: wpbonelli

README.md

@@ -102,7 +102,7 @@ call "%INTEL_HPCKIT_INSTALL_PATH%\compiler\%INTEL_COMPILER_VERSION%\env\vars.bat
 
 The `cache` input is a boolean that controls whether the action caches the oneAPI compiler installation. The default is `true`.
 
-**Note:** installation on Windows can take a long time (~30 minutes) so caching is recommended, however an [outstanding cache reservation bug in `actions/cache`](https://github.com/actions/cache/issues/144) can cause the cache to [fail to restore while simultaneously rejecting new saves](https://github.com/MODFLOW-USGS/modflow6/actions/runs/3624583228/jobs/6111766806#step:6:152). The [GitHub-endorsed workaround for this issue](https://github.com/actions/cache/issues/144#issuecomment-579323937) is currently to change keys, therefore this action rotates the cache key once daily.
+**Note:** installation on Windows can take a long time (~30 minutes) so caching is recommended, however an [outstanding cache reservation bug in `actions/cache`](https://github.com/actions/cache/issues/144) can cause the cache to [fail to restore while simultaneously rejecting new saves](https://github.com/MODFLOW-USGS/modflow6/actions/runs/3624583228/jobs/6111766806#step:6:152). The [GitHub-endorsed workaround for this issue](https://github.com/actions/cache/issues/144#issuecomment-579323937) is currently to change keys, so this action rotates the cache key once daily. You may want to run a job in the early hours of the morning to warm up the cache on your repository's default branch, so PR/feature branches can restore from it throughout the day.
 
 ## Outputs