Cleans up a reference in the Optimistic Update Key from optimistic_slot to signature_slot left over from #235
Clarifies that FOUNDCONTENT responses for LightClientFinalityUpdate should contain a node's latest Finality Update (if its local finality update is the same or later than the one requested in a FINDCONTENT message.
Optimistic Update Key
fromoptimistic_slot
tosignature_slot
left over from #235FOUNDCONTENT
responses forLightClientFinalityUpdate
should contain a node's latest Finality Update (if its local finality update is the same or later than the one requested in aFINDCONTENT
message.