Verify github documentation

[pirog-spb]

Acceptance criteria:

• [ ] Deployment configs
• [x] Add docker-compose open5gs link
• [x] Add docker-compose free5gc ulcl link
• [x] Relative repos links and access rigths
• [x] Check comments in code
• [ ] Check absolete files in repo

[PapaySail]

• ❓ "Add docker-compose free5gc ulcl link" - where from? @pirog-spb
• Make repository https://github.com/edgecomllc/open5gs-compose Public, please @pirog-spb
• 🤷‍♂️ " Check obsolete files in repo" - which one? : needed competent helper

[pirog-spb]

❓ "Add docker-compose free5gc ulcl link" - where from? @pirog-spb

See https://github.com/edgecomllc/free5gc-compose/tree/ulcl-n9upf-experimetns

Make repository https://github.com/edgecomllc/open5gs-compose Public, please @pirog-spb

Done