fix: more comments

pkgr/src/main.rs

@@ -3,12 +3,19 @@ use log::trace;
 
 use crate::commands::Cli;
 
+/// pkgr's commands.
 mod commands;
+/// Logging implementations for pkgr.
 mod logging;
+/// Package and helpers.
 mod package;
+/// Process wrapper with logging wrapper.
 mod process;
+/// tmpfs wrapper.
 mod tmpfs;
+/// pkgr's optional config.
 mod config;
+/// custom types used by pkgr
 mod types;
 
 thread_local! {