message: docs: add snap install option to README
diff: - [Cargo](#cargo)
  - [Arch Linux](#arch-linux)
  - [Debian/Ubuntu](#debianubuntu)
  + - [Snap](#snap)
  - [Fedora/CentOS](#fedoracentos)
  - [Gentoo](#gentoo)
  - [Nix](#nix)
  @@ -133,6 +134,20 @@ curl -LO https://github.com/ClementTsang/bottom/releases/download/0.6.8/bottom_0
  sudo dpkg -i bottom_0.6.8_amd64.deb
  ```
  +### Snap
  +
  +bottom is available as a [snap](https://snapcraft.io/install/bottom/ubuntu):
  +
  +```bash
  +sudo snap install bottom
  +
  +# To allow the program to run as intended
  +sudo snap connect bottom:mount-observe
  +sudo snap connect bottom:hardware-observe
  +sudo snap connect bottom:system-observe
  +sudo snap connect bottom:process-control
  +```
  +
  ### Fedora/CentOS
  Available in [COPR](https://copr.fedorainfracloud.org/coprs/atim/bottom/):
  @@ -169,7 +184,7 @@ nix-env -i bottom
  ### Solus
  -```
  +```bash
  sudo eopkg it bottom
  ```
  