Update Scratch.md

Author: rolandlegrand

_lexicon/Scratch.md

@@ -7,3 +7,7 @@ metamaps_link:
 ---
 
 [Scratch](https://scratch.mit.edu/) is a visual programming language for kids and young people, developed at the MIT. 
+It's also a worldwide community of young programmers and instructors. The [Scratch Foundation](https://www.scratchfoundation.org/) supports the mission, 
+which is defined as engaging "young people in thinking creatively, reasoning systematically, and working collaboratively -- essential skills for everyone in today's society."
+
+