Added no_run to README.md example

This is done because when not passing `no_run`, the github
action was running forever.

README.md

@@ -16,7 +16,7 @@ $ cargo add bevy-discord --features full
 
 ## Quick Start
 
-```rust
+```rust,no_run
 // examples/basic_bot.rs
 use bevy::prelude::*;
 use bevy_discord::bot::serenity::all::*;