message: Add Command Client usage in README
diff: **An easy to use Discord API Library for Deno.**
  * Lightweight and easy to use.
  +* Built-in Command Framework,
  + * Easily build Commands on the fly.
  + * Compltely Customizable.
  + * Complete Object-Oriented approach.
  * 100% Discord API Coverage.
  * Customizable caching.
  * Built in support for Redis.
  @@ -55,6 +59,35 @@ client.on('messageCreate', (msg: Message): void => {
  client.connect('super secret token comes here', Intents.All)
  ```
  +Or with CommandClient!
  +```ts
  +import { CommandClient, Command, CommandContext, Message, Intents } from 'https://raw.githubusercontent.com/discord-deno/discord.deno/main/mod.ts'
  +
  +const client = new CommandClient({
  + prefix: '!'
  +})
  +
  +// Listen for event when client is ready (Identified through gateway / Resumed)
  +client.on('ready', () => {
  + console.log(`Ready! User: ${client.user?.tag}`)
  +})
  +
  +// Create a new Command
  +class PingCommand extends Command {
  + name = "ping"
  +
  + execute(ctx: CommandContext) {
  + ctx.message.reply(`pong! Ping: ${ctx.client.ping}ms`)
  + }
  +}
  +
  +client.commands.add(PingCommand)
  +
  +// Connect to gateway
  +// Replace with your bot's token and intents (Intents.All, Intents.Presence, Intents.GuildMembers)
  +client.connect('super secret token comes here', Intents.All)
  +```
  +
  ## Docs
  Not made yet.
  