add alias metadata, remove help()

aliases/available/todo.txt-cli.aliases.bash

@@ -1,19 +1,8 @@
-#!/usr/bin/env bash
+cite 'about-alias'
+about-alias 'todo.txt-cli abbreviations'
 
 alias tls="$TODO ls"
 alias ta="$TODO a"
 alias trm="$TODO rm"
 alias tdo="$TODO do"
 alias tpri="$TODO pri"
-
-todo-help() {
-	echo
-	echo "todo.txt-cli Custom Aliases Usage"
-	echo
-	echo " tls  = $TODO ls"
-	echo " ta   = $TODO add"
-	echo " trm  = $TODO rm"
-	echo " tdo  = $TODO do"
-	echo " tpri = $TODO pri"
-	echo
-}