message: docs: Mention the nightly version in the README
diff: @@ -16,6 +16,7 @@ A cross-platform graphical process/system monitor with a customizable interface
  - [Other known platform-specific issues](#other-known-platform-specific-issues)
  - [Installation](#installation)
  - [Manually](#manually)
  + - [Nightly](#nightly)
  - [Cargo](#cargo)
  - [AUR](#aur)
  - [Debian](#debian)
  @@ -125,6 +126,10 @@ cargo install --path .
  Or, you can just download the binary from the [latest release](https://github.com/ClementTsang/bottom/releases/latest).
  +### Nightly
  +
  +You can install pre-release nightly versions [here](https://github.com/ClementTsang/bottom/releases/tag/nightly). Builds are generated every day at 00:00 UTC, based on the most recent commit on the master branch.
  +
  ### Cargo
  ```bash
  