Document cf_account_info and cf_account_info_v2

[CumpsD]

It is referenced here:

chainflip-docs/pages/lp/integrations/lp-api.mdx

Line 738 in abd8457

This RPC returns the free balances of your LP account at the latest finalized block. Your free balance is all the funds that are not currently associated with an existing order. We recommend you use `cf_account_info` to determine your free balance, instead of using this rpc due to a known issue where this function will not always include all the fees you have earned. Therefore the returned number can be slightly less than the true number.

But besides that there is no documentation on it

As for cf_account_info_v2, there is no documentation on it either