docs: fix mardown syntax (#43)

error reported by markdownlint

Author: davidB

CONTRIBUTING.md

@@ -12,7 +12,6 @@ expert, we can use your help.
 This guide will help you get started. **Do not let this guide intimidate you**.
 It should be considered a map to help you navigate the process.
 
-
 ## Asking for General Help
 
 If you have reviewed existing documentation and still have questions or are
@@ -41,7 +40,5 @@ Note that multiple commits often get squashed when they are landed.
 
 Commit messages should follow [Conventional commits].
 
-
 [just]: https://just.systems/
 [Conventional commits]: https://www.conventionalcommits.org/
-[crate.io]: https://crates.io/

rustainers/README.md

@@ -1,9 +1,9 @@
+# rustainers
+
 [![Build status](https://github.com/wefoxplatform/rustainers/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/wefoxplatform/rustainers/actions/workflows/ci.yml)
 [![Crates.io](https://img.shields.io/crates/v/rustainers)](https://crates.io/crates/rustainers)
 [![Documentation](https://docs.rs/rustainers/badge.svg)](https://docs.rs/rustainers)
 
-# rustainers
-
 `rustainers` is a simple, opinionated way to run containers for tests.
 
 ## TL;DR
@@ -22,7 +22,7 @@ The key differences are
 - this crate supports [docker compose], [podman-compose] or [nerdctl compose]
 - the start command is `async`, and the crate is using [tokio]
 
-For now, the implementation is based on the CLI command. 
+For now, the implementation is based on the CLI command.
 We may add more runner based on Rust api later.
 
 ## Run a simple container
@@ -115,7 +115,6 @@ async fn do_something_with_kafka(image: &KafkaSchemaRegistry) -> anyhow::Result<
 
 See [`images`](crate::images) module documentation.
 
-
 ## Create a custom compose images
 
 See [`compose::images`](crate::compose::images) module documentation.