initial kof documentation proposal

[DinaBelova]

• add initial kof (observability and finops) repo docs
  • short description / link to the observability project
  • deployment guide

[mestadler]

@denis-ryzhkov looks great, do we just need one more reviewer to agree?

[denis-ryzhkov]

@mestadler no, I'm still working on it, I'll let you know once it is ready

[denis-ryzhkov]

Feedback from Shaun I'll address as part of this issue:

• kof docs: rename "storage" to "regional" docs#72 - The architecture terminology we use (e.g. storage) is confusing when working between mothership and regional clusters - I would suggest that we just call the regional storage a "regional cluster" or something similar.
• The values options for the mothership template are unclear without going looking through the templates themselves