Added tag v0.1.0 for changeset 1305ab54f37a

Add installation instructions and desktop file.

Also prep for publishing to crates.io.

Fixes #1.

cargo clippy

`cargo fmt`

Some refactoring

- move example config to `examples/` so we can test erroring out when no config is found
- move `read_config` to `Config::read`

Don't hardcode config file path

Move `parse` into `impl Config`

Use expect(msg) instead of unwrap()

Use absolute path for LICENSE.txt so it shows up right both in the hg.sr.ht and the sr.ht hub

fix link to license text, add link to TODOs

Support for multi-arg browser commands

Initial support for picking browsers

This only considers the first element of the browser definition, so
Flatpak apps are not supported yet

e.g. `/usr/bin/firefox URL` works, but

`flatpak run org.gnome.Epiphany URL` does not work yet.

Initial code to read config file; not hooked up to `open_url` yet.

Initial commit