Revamp Old Content

[oubiwann]

Tasks / Features:

• Create new community page(s) - Create new community page(s) #99
  • Document the list of community LFE Github orgs - Document the list of community LFE Github orgs #85
• Update the LFE Style Guide - Update the LFE Style Guide #100
• Update "Contributing" Section with New Dev On-Boarding - Update "Contributing" Section with New Dev On-Boarding #32

Part of release #95

[oubiwann]

Most of this was done ages ago.