Update Changelog and release 0.3.0

Author: nickjj

CHANGELOG.md

@@ -7,6 +7,10 @@ Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+- Nothing yet!
+
+## [0.3.0] - 2021-12-26
+
 ### Added
 
 - Lint Dockerfile with <https://github.com/hadolint/hadolint>
@@ -101,6 +105,7 @@ Changelog](https://keepachangelog.com/en/1.0.0/).
 
 - Everything!
 
-[Unreleased]: https://github.com/nickjj/docker-node-example/compare/0.2.0...HEAD
+[Unreleased]: https://github.com/nickjj/docker-node-example/compare/0.3.0...HEAD
+[0.3.0]: https://github.com/nickjj/docker-node-example/compare/0.2.0...0.3.0
 [0.2.0]: https://github.com/nickjj/docker-node-example/compare/0.1.0...0.2.0
 [0.1.0]: https://github.com/nickjj/docker-node-example/releases/tag/0.1.0

README.md

@@ -131,7 +131,7 @@ these commands for PowerShell if you want.
 git clone https://github.com/nickjj/docker-node-example hellonode
 cd hellonode
 
-# Optionally checkout a specific tag, such as: git checkout 0.2.0
+# Optionally checkout a specific tag, such as: git checkout 0.3.0
 ```
 
 #### Copy a few example files because the real files are git ignored: