re-add code blocks

src/commands/eval.rs

@@ -7,6 +7,8 @@ pub async fn eval(ctx: Context<'_>,
                   #[rest]
                   expr: String) -> Result<(), Error>
 {
+	let expr = expr.strip_prefix("```").and_then(|s| s.strip_suffix("```")).unwrap_or(&expr);
+
 	let values = lamm::evaluate(Cursor::new(expr));
 
 	let output = values.fold(Ok(String::new()), |acc, v| {