Refactor and improve (SVG) existing badges, add Gitter badge to tldr, remove NPM badge, add more common NPM badge
Refactor and improve (SVG) existing badges, add Gitter badge to tldr, remove NPM badge, add more common NPM badge

tldr-pages/tldr-node-client,ZDroid/tldr-node-client,tldr-pages/tldr-node-client