Revert "increase codeblock font size, don't display line numbers"

This reverts commit b227b5608a10bf64796c96eec6c77fca05c8b689.
Revert "use Alegreya and Inconsolata fonts"

This reverts commit e9f9d299f992055962ac53b62f09d7c8af95361f.
Revert "added Alegreya and Inconsolata fonts from Google"

This reverts commit ccd5558f40abe6d0212bc2a0ec394966d3089e54.
Revert "added Alegreya and Inconsolata fonts from Google"

This reverts commit fb0a95e4efadbce57c75b4590d6232dafc41575a.