Merge pull request #117 from codecleaner/lesson_formatter

Lesson formatter version of polish Fruit Machine
Add resources to lessons in en-gb term 1
Fixing formatting on lesson 08, paintbox en-gb
Fix term 2 sound machine scratch card formatting errors. Including pngs for scratch cards in project manifest.
Added lesson 03, Fuegos Artificiales
Merge pull request #118 from iverona/es_ES_md_format_tweaks

Added lesson 03, Fuegos Artificiales