Minor issues with setting-up-a-validator.md

[xilodyne]

Trying to set up a node following https://github.com/Gravity-Bridge/Gravity-Docs/blob/main/docs/setting-up-a-validator.md

Section: Add your validator key
No information on how to create new gravity bridge wallet keys (only gives --recovery and --ledger). Isn't clear that the only command needed is:
gravity keys add

Section: View your key (optional)
gives command: gravity keys show --bech val
Would be helpful to clarify that the way to get the wallet address to transfer from Keplr is
gravity keys show

Section: Setup Gravity Bridge and Orchestrator service
Line number references do not correspond to the *.service files that are currently downloaded at
wget https://raw.githubusercontent.com/Gravity-Bridge/Gravity-Docs/main/configs/