Centrifuge Deployment Info - V2 (axelarnetwork#640)

* Fix mainnet (docker compose)

* Centrifuge docker compose revisedd

* Revise Testnet standalone setup

* chore: update demo spec

* Review after testing docker and binaries (tesnet)

* Add snapshots and new relaychain fast sync option

* quickly review the rest of the arguments

* Minor fixes after having validators try Centrifuge

* Added new bootnode for testnet

* PR comments

* change the docker tag to something more generic

* modifications after validators feedback

* feat: update docs, clean up, add troubleshoot section

* feat: add latest info

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Co-authored-by: Guillermo Perez <[email protected]>
Co-authored-by: Guillermo Perez <[email protected]>
Co-authored-by: William Freudenberger <[email protected]>
Co-authored-by: Jeroen Offerijns <[email protected]>
Co-authored-by: Jeroen <[email protected]>