Merge pull request #1723 from Stavrospanakakis/patch-1

Update README.md to include `is_ready`

README.md

@@ -673,6 +673,7 @@ See also [A comparison of operating systems written in Rust](https://github.com/
   * [LukeMathWalker/cargo-chef](https://github.com/LukeMathWalker/cargo-chef) - A tool and pre-built images for caching compiling remote dependencies between Docker builds.
   * [rust-cross/rust-musl-cross](https://github.com/rust-cross/rust-musl-cross) — Docker images for compiling static Rust binaries using musl-cross [![Build](https://github.com/rust-cross/rust-musl-cross/workflows/Build/badge.svg)](https://github.com/rust-cross/rust-musl-cross/actions?query=workflow%3ABuild)
   * [rust-lang-nursery/docker-rust](https://github.com/rust-lang/docker-rust) — the official Rust Docker image
+  * [Stavrospanakakis/is_ready](https://github.com/Stavrospanakakis/is_ready) - Wait for multiple services to become available ![Build](https://github.com/Stavrospanakakis/is_ready/actions/workflows/release.yml/badge.svg)
 * Heroku
   * [emk/heroku-buildpack-rust](https://github.com/emk/heroku-buildpack-rust) — A buildpack for Rust applications on Heroku
 * [MarcoIeni/release-plz](https://github.com/MarcoIeni/release-plz) [[release-plz](https://crates.io/crates/release-plz)] — Release crates from CI, with changelog generation and semver check. [![build badge](https://github.com/MarcoIeni/release-plz/workflows/CI/badge.svg)](https://github.com/MarcoIeni/release-plz/actions)