Add an overview page "What is SQL injection?"

[petdance]

Instead of trying to cram the SQL injection discussion on the front page, move it to its own page.

[petdance]

Maybe include a link here of why this is a big deal: https://github.com/sysdream/pysqli

Entire toolkits exist to exploit your SQL. You can't just assume "No one will notice my site." Exploits scale well.