docs: add readme and comments

Author: anderssonjohan

README.md

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+<<<<<<< HEAD
 # trainee-release-with-git
 
 This is the trainee course material for the session "Release with Git" which
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 * [Semantic Release: Release Workflows](https://semantic-release.gitbook.io/semantic-release/recipes/release-workflow)
 * [Git Rebase: Git In Practice](https://www.thinktecture.com/en/tools/demystifying-git-rebase)
 * [Video: VSCode GitLens Interactive Rebase UI](https://www.youtube.com/watch?v=P5p71fguFNI)
+=======
+# Hello world
+
+NodeJS hello world
+
+## How to run
+
+```
+node index.js
+```
+
+>>>>>>> 4f0573d (docs: add readme and comments)

index.js

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+// Prints hello world and current time to the user
 console.log("Hello world!");
 console.log(new Date());