Added documentation.

src/event.rs

@@ -1,13 +1,19 @@
+//! Internal representations of incoming events.
+
 use irc::proto::{Command, Message};
 use serde::{Deserialize, Serialize};
 
+/// Represents an event.  Probably from IRC.
 #[derive(Deserialize, Serialize)]
 pub struct Event {
+    /// Who is the message from?
     from: String,
+    /// What is the message?
     message: String,
 }
 
 impl Event {
+    /// Creates a new message.
     pub fn new(from: impl Into<String>, msg: impl Into<String>) -> Self {
         Self {
             from: from.into(),