website: various updates

website/content/cli.md

website/content/images/cli.png

website/content/images/measuring_moi.jpg

website/content/images/new_cli.png

website/content/images/wifi_testing.png

website/content/measuring_moi.md

website/content/pages/about.md

website/content/updated_cli.md

website/content/wifi_latency_update.md

website/themes/notmyidea/static/css/main.css

website/themes/notmyidea/templates/article_infos.html

website/themes/notmyidea/templates/base.html

website/themes/notmyidea/templates/index.html