added sections and section headings
added sections and section headings

NashvilleWomenProgrammers/nwp-site-v2,NashvilleWomenProgrammers/nashvillewomenprogrammers.github.io,NashvilleWomenProgrammers/nashvillewomenprogrammers.github.io,NashvilleWomenProgrammers/nwp-site-v2