Updated Crystal API (markdown)

Crystal-API.md

@@ -1,12 +1,12 @@
+trait for declaring an application, pretty much just create a struct and implement the trait, the main function should be async as 
+in the trait.
+
+- you will also need to import Box and async_trait for any struct implementing async trait to work otherwise you'll get a compile error
 
 ```rust
-use async_trait::async_trait;
-use alloc::{string::String, vec::Vec, boxed::Box};
-
 #[async_trait]
 pub trait Application {
     fn new() -> Self;
-
     async fn run(&mut self, _: Vec<String>) -> Result<(), Error> {
         Ok(())
     }
@@ -19,5 +19,4 @@ pub enum Error {
     ApplicationError(String),
     EmptyCommand,
 }
-
 ```