change data-lang to lang, so screen readers know how to pronounce them
change data-lang to lang, so screen readers know how to pronounce them

denysdovhan/nodeschool.github.io,jthoms1/nodeschool.github.io,jthoms1/nodeschool.github.io,nodeschool/nodeschool.github.io,nodeschool/nodeschool.github.io,nodeschool/nodeschool.github.io,denysdovhan/nodeschool.github.io,jthoms1/nodeschool.github.io,denysdovhan/nodeschool.github.io