Usage documentation.

README.md

@@ -7,6 +7,19 @@ Build [toolbox](https://github.com/containers/toolbox/).
 Until there's Debian packaging for it,
 [build it myself](https://git.shore.co.il/shore/toolbox-build/-/jobs/artifacts/master/raw/toolbox/builddir/src/toolbox?job=build).
 
+## Usage
+
+The link above is for the binary, the rest of the files (man pages, Bash
+completion script) are in the CI pipeline artifacts. There's also a tar file
+that has all of the files in the right hierarchy to just unpack like so:
+
+```
+curl https://git.shore.co.il/shore/toolbox-build/-/jobs/artifacts/master/raw/toolbox.tar.gz?job=build | tar -xzC /
+```
+
+Lastly, there's also an
+[Ansible role](https://git.shore.co.il/shore/homelab/-/tree/master/roles/toolbox).
+
 ## License
 
 This software is licensed under the MIT license (see `LICENSE.txt`).