add pagw content class to the <main> element on the home page
whitespace cleanup
spelling fixes, removed margin setting in .pagecontent...all happened on _globalStyles.scss
update layouts & change about section profile pic

wrapped <h1> and <h2> tags in <header> in a <div> for floating/positioning purposes but this may change. Also updated the profile pic in the footer's about section.
add previous button back to homepage pagination to fix a bug
continue to add clearer comments to styles.min.css via Sass files
hide "assets" directory from project in .gitignore
commit new build of the production-ready "styles.min.css"