updating with curriculum links

Author: MarcScott

learn.md

@@ -7,3 +7,7 @@
  - How to use HTML to create simple web page templates
  - How to use CSS to control the appearance of HTML content
  - How to configure Flask and make your website accessible to other devices on your local network
+
+This resource covers elements from the following strands of the [Raspberry Pi Digital Making Curriculum](https://www.raspberrypi.org/curriculum/):
+
+- [Combine programming constructs to solve a problem](https://www.raspberrypi.org/curriculum/programming/builder)