Update usage instructions to source hooks

[paulodiovani]

Description

The usage instructions to source hook scripts to allow setting env vars search for *.sh files, but those scripts are actually symbolic links, thus the find command never fins any and the function does not work.

by replacing -type f with -type l the function works.

Alternative script

I myself simplify this script by simply redefining the tinty command with a function, so there is no need for the alias:

tinty() {
  newer_file=$(mktemp)
  command tinty $@
  subcommand="$1"

  if [ "$subcommand" = "apply" ] || [ "$subcommand" = "init" ]; then
    tinty_data_dir="${XDG_DATA_HOME:-$HOME/.local/share}/tinted-theming/tinty"

    while read -r script; do
      # shellcheck disable=SC1090
      . "$script"
    done < <(find "$tinty_data_dir" -maxdepth 1 -type l -name "*.sh" -newer "$newer_file")

    unset tinty_data_dir
  fi

  unset subcommand
}

[JamyGolden]

Thanks for the PR. How about changing this so that it finds both symlinks and normal files because there is a change the files aren't symlinks too.