Added an aditional role play into resources.

This builds on the work already under volunteer resources to provide
and additional role play for helping to understand coordinates in scratch.
Merge pull request #102 from jaques/master

Added an aditional role play into resources.
update manifest
Updating Term 2 Manifest
remove pdfs
Scratch Cards for Term 2
Merge branch 'master' of github.com:CodeClub/scratch-curriculum
Move scratchcards to project extras
Added an introductory role playing activity into resources.
This aims to familiarise children with the way we use code to "talk to computers".
It also introduces the practices of testing and debugging code, collaboratively.
Renamed Introduction.md as README.md
Changed the formatting for texts intended as "script for the volunteer to say", from code blocks (more appropriate) blockquotes.
Small tweaks, added "end result" example picture.
Updated instructions image.
Markdown fixes
Merge pull request #103 from matteomenapace/master

New role playing activity
Lesson formatter version: Feliks i Herbert
Lesson formatter version: Feliks i Herbert - add screenshot
Merge pull request #105 from codecleaner/lesson_formatter

Lesson formatter version of Felix & Herbert
Headers on pl-PL term1
Remove bom