homepage updates

[ghost]

Things Done:

• remove comments
• good indent to whole index.html
• better html structure based on the one from other sections
• url broken -> remove and update a few more on sections members, merchants, wallets, buy and mine
• added new links into mine and buy sections
• update youtube video link from last update
• update language html attributes 'lang' and 'dir' for rtl languages #128
• skein totally removed from the page

[ghost]

Things missing translations on ¡Localizations.js file from:

• header-members-button
• members-section-header
• coders-desktop-title
• credits-desktop-title
• marketing-desktop-title
• header-merchants-button
• merchants-tools-section-header

[veloki]

Can you remove the litebit exchange? they delist myriad