adapt howto.rc3.world!70 to themes repo

rc3-2021/base.html

rc3-2021/css/base.css

rc3-2021/fonts/Changa-SemiBold.woff2

rc3-2021/fonts/FontAwesome.otf

rc3-2021/fonts/SpaceMono-Bold-webfont.woff

rc3-2021/fonts/SpaceMono-BoldItalic-webfont.woff

rc3-2021/fonts/SpaceMono-Regular-webfont.woff

rc3-2021/fonts/fontawesome-webfont.eot

rc3-2021/fonts/fontawesome-webfont.svg

rc3-2021/fonts/fontawesome-webfont.ttf

rc3-2021/fonts/fontawesome-webfont.woff

rc3-2021/fonts/fontawesome-webfont.woff2

rc3-2021/fonts/montserrat-bold-webfont.woff

rc3-2021/fonts/montserrat-bold-webfont.woff2

rc3-2021/fonts/montserrat-italic-webfont.woff

rc3-2021/fonts/montserrat-italic-webfont.woff2

rc3-2021/fonts/montserrat-regular-webfont.woff

rc3-2021/fonts/montserrat-regular-webfont.woff2

rc3-2021/fonts/orbitron-variablefont_wght-webfont.woff

rc3-2021/fonts/orbitron-variablefont_wght-webfont.woff2