[docfixed]: dev-cli, ao init --lang options are 'lua' and 'c'

[RyanKung]

The current ao init --help <project_name> output shows the following:

~/ai_repub » ao init --help

Usage:   ao init -l cpp <my-project-name>
Version: 0.1.7

Description:

  Create an ao Process Source Project

Options:

  -h, --help              - Show this help.
  -l, --lang  <language>  - The starter to use. Defaults to Lua. Options are "lua" and "cpp"

However, the actual supported options are "lua" and "c", which matches the structure inside the folder.
Using "cpp" will fallback to lua (as default).

 ls ~/.ao/starters                                                                                                                          1 ↵
c  lua