add doc comments

src/command/config.rs

@@ -1,3 +1,5 @@
+//! `config` subcommand
+
 mod migrate;
 mod validate;
 

src/command/config/migrate.rs

@@ -1,3 +1,5 @@
+//! `config migrate` subcommand
+
 mod v20240701;
 
 use super::ConfigVersion;

src/command/config/migrate/v20240701.rs

@@ -1,3 +1,5 @@
+//! `config migrate 20240701` subcommand
+
 use sqlx::{postgres::PgConnectOptions, ConnectOptions};
 use std::{collections::HashMap, env, fs, io::Read};
 use yaml_rust::{Yaml, YamlLoader};

src/command/config/validate.rs

@@ -1,3 +1,5 @@
+//! `config validate` subcommand
+
 use crate::config::{client, server};
 use std::{env, fs, io::Read};
 use validator::{Validate, ValidationErrors};

src/command/mod.rs

@@ -1,3 +1,5 @@
+//! Subcommand implementations
+
 pub(crate) mod config;
 pub(crate) mod version;
 

src/command/version.rs

@@ -1,3 +1,5 @@
+//! `version` subcommand
+
 use color_print::cprintln;
 
 pub(crate) fn run() {