Support cargo-deb and fix readme

Cargo.toml

@@ -12,3 +12,10 @@ anyhow = "1.0"
 clap = "3.0.0-beta.2"
 posixmq = "1.0"
 chrono = "0.4"
+
+[package.metadata.deb]
+extended-description = "`mqrs` is a small cli application to handle POSIX message queues."
+assets = [
+       ["target/release/mqrs", "usr/bin/", "755"],
+       ["README.md", "usr/share/doc/cargo-deb/README.md", "644"],
+]

README.md

@@ -2,8 +2,7 @@
 `mqrs` is a small cli application to handle POSIX message queues.
 
 ## Installation
-Currently `mqrs` can only be built with the rust toolchain. Support
-for `cargo-deb` is imminent.
+To build `mqrs` a rust toolchain is necessary.
 
 ### Install Rust
 Install the Rust toolchain from [rustup.rs](https://rustup.rs).
@@ -19,6 +18,11 @@ or for releasing:
 cargo b --release
 ```
 
+### Build the `mqrs` Debian package
+```sh
+cargo deb
+```
+
 ### Install `mqrs`
 When a Rust toolchain installed you can also install `mqrs`
 directly without cloning it manually: