[DOCS] 0.1.6 Documentation

[z3ath]

0.1.6's documentation is behind, some features need further documentation.

Areas to improve

• MOTD template data and methods
• Steam guide
• Github pages
• !alias
• !lua
• !run example.lua
• Lua bindings, remove that initialisation output too
• Build instructions, (Error on initial run from 0.1.6 linux release version related to text encoding #168)