Docs Update 1.2

[y0014984]

• Slotlist Attributes
• NATO Codes and direct link from Attribute (attribute link to docs needs to be fixed)
• Changed Icons in Slotlist (Update Screenshots)
• Event Drafts (incl. optional date & time setup) --> There is a Rework going on
• Embeds
• My Events List
• ln.arma.events
• api.arma.events
• colored text in markdown with Red Text
• Attendance and slotting
• Markdown tables
• Update Markdown article: Add checkbox lists