Update readme.md
Update readme.md

fixed typo from .js to .md as per Danielles suggestion
PLopezD/plopezd.github.io,AlexTrost/AlexTrost.github.io,PLopezD/plopezd.github.io,AlexTrost/AlexTrost.github.io,spookysalsa/medermade.github.io,PLopezD/plopezd.github.io,davidckim/davidckim.github.io,bounceflick/bounceflick.github.io,davidckim/davidckim.github.io,spookysalsa/medermade.github.io,hamberguesa/hamberguesa.github.io,PLopezD/plopezd.github.io