feat: add support for enhanced help output

subcommands/backup

@@ -4,7 +4,12 @@ set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
 source "$PLUGIN_BASE_PATH/common/functions"
 source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
-postgres-backup-cmd() {
+service-backup-cmd() {
+  #E backup the 'lolipop' service to the 'my-s3-bucket' bucket on AWS
+  #E dokku $PLUGIN_COMMAND_PREFIX:backup lolipop my-s3-bucket --use-iam
+  #F -i|--use-iam, use the IAM profile associated with the current server
+  #A service, service to run command against
+  #A bucket-name, name of the s3 bucket to upload backups to
   declare desc="creates a backup of the $PLUGIN_SERVICE service to an existing s3 bucket"
   local cmd="$PLUGIN_COMMAND_PREFIX:backup" argv=("$@"); [[ ${argv[0]} == "$cmd" ]] && shift 1
   declare SERVICE="$1" BUCKET_NAME="$2" USE_IAM_OPTIONAL_FLAG="$3"
@@ -15,4 +20,4 @@ postgres-backup-cmd() {
   service_backup "$SERVICE" "$BUCKET_NAME" "$USE_IAM_OPTIONAL_FLAG"
 }
 
-postgres-backup-cmd "$@"
+service-backup-cmd "$@"