Add new tag for common resources (#3479)

* Add new tag for common resources

Add new tag "learn-python.md" for resources that are often recommended to people just starting out.

* Add link to resources page and fix wording

Add a link to resources page at the bottom of the tag. Replace the

CS50P link with Harvard's own site instead of edX. Fix wording.

* Update tag embed content

* Fix embed title

* Update learn-python tag

Add new aliases, reorder the resources list and minor formatting

improvements.

* Add missing newline at end of file

* Remove trailing whitespace

Here are the top free resources we recommend for people who are new to programming: * Automate the Boring Stuff — an online book (also available to purchase as a physical book) * Harvard’s CS50P course — video lectures (slides and notes provided) with exercises * Python Programming MOOC 2026 course — text-based lessons with exercises * Corey Schafer's YouTube playlist

For a full, curated list of educational resources we recommend, please see our resources page!