make test release for open-vsx

extend gitignore

extend semantic web article by knowledge, information, data layers example.

improve badges layout

improve downloads and features sctions

fix image paths and content block ids

convert platforms and projects lists to badges

move code to root to keep structure simple

add logo, add minor fixes

fix ru translation 2

fix ru translation

fix visited urls color to make it more eye candy

fix language switcher layout we don't need it to be visible all the time during scrolling

fix language switcher overlap titles on small screens

remove language switcher highlight on taps for touchscreen devices

add language swithcer

formalize wrapper for translation

improve footer

fix texts

improve semantic web definition

improve interconnectivity of pages