Add readme and improve description

Cargo.toml

@@ -5,7 +5,7 @@ authors = ["finga <mqrs@onders.org>"]
 edition = "2018"
 license = "GPL-3.0-or-later"
 readme = "README.md"
-description = "A CLI program for interacting Posix Message Queues"
+description = "A CLI program for interacting with Posix Message Queues."
 
 [dependencies]
 anyhow = "1.0"

README.md

@@ -0,0 +1,48 @@
+# mqrs
+`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.
+
+### Install Rust
+Install the Rust toolchain from [rustup.rs](https://rustup.rs).
+
+### Build `mqrs`
+`mqrs` can be built for development:
+``` sh
+    cargo b
+```
+
+or for releasing:
+``` sh
+    cargo b --release
+```
+
+### Install `mqrs`
+When a Rust toolchain installed you can also install `mqrs`
+directly without cloning it manually:
+``` sh
+    cargo install --git https://git.onders.org/finga/mqrs.git mqrs
+```
+
+or from within the project:
+``` sh
+    cargo install mqrs
+```
+
+### Run `mqrs`
+`mqrs` can either be run from the project directory with:
+``` sh
+    cargo b
+```
+
+or you can copy the produced binary somewhere else or link to them
+from `target/{debug,release}/mqrs` depending on which
+one you built.
+
+## Using `mqrs`
+`mqrs` supports five commands: `create`, `info`, `unlink`, `send` and
+`receive`. All commands do not have to be specified fully. If the
+command is clearly distinguishable from all the others, it does not
+have to be completed further.