Fixed formatting of exercise with hints

Update setup.md

Fixed spaces instead of tabs in TSV

Update index.md

Add images from the presentation

Build using ruby 3.3

Update licensing.tsv

Update licensing.tsv

Update licensing.tsv

Update licensing.tsv with presentation

Add presentation

Delete _episodes/2025-04-module-readme-markdown-dm-practices.pdf

Add presentation slides (.pdf)

Fix typeo in README introduction 01-introduction.md

Update README introduction 01-introduction.md

Add that a README is a .txt file 01-introduction.md

Update the README introduction

Add exercises 01-introduction.md

Update descriptions and examples 01-introduction.md

Update first version and rename 001-first-lesson.md to 01-introductio…

Empty template for a new module

Empty template for a new module