add some small doc comments

README.md

@@ -1,7 +1,7 @@
 panorama
 ========
 
-[![](https://tokei.rs/b1/github/iptq/panorama?category=lines)](https://github.com/XAMPPRocky/tokei)
+[![](https://tokei.rs/b1/github/iptq/panorama?category=code)](https://github.com/XAMPPRocky/tokei)
 
 Panorama is a terminal Personal Information Manager (PIM).
 

imap/src/lib.rs

@@ -1,3 +1,11 @@
+//! Panorama/IMAP
+//! ===
+//!
+//! This is a library that implements the IMAP protocol according to RFC 3501 and several
+//! extensions. Although its primary purpose is to be used in panorama, it should be usable for
+//! general-purpose IMAP usage. See the [client][crate::client] module for more information on how
+//! to get started with a client quickly.
+
 #[macro_use]
 extern crate anyhow;
 #[macro_use]

imap/src/parser/mod.rs

@@ -1,3 +1,5 @@
+//! Module that implements parsers for all of the IMAP types.
+
 use std::fmt::Debug;
 use std::str::FromStr;
 

imap/src/response/mod.rs

@@ -1,3 +1,5 @@
+//! Structs and enums that have to do with responses.
+
 use std::ops::RangeInclusive;
 
 #[derive(Clone, Debug, PartialEq, Eq)]

src/main.rs

@@ -5,7 +5,7 @@ use std::path::{Path, PathBuf};
 
 use anyhow::Result;
 use fern::colors::{Color, ColoredLevelConfig};
-use futures::future::{FutureExt, TryFutureExt};
+use futures::future::TryFutureExt;
 use panorama::{config::spawn_config_watcher_system, mail, report_err, ui};
 use structopt::StructOpt;
 use tokio::{runtime::Runtime, sync::mpsc};