Corrected Pericles spawn

[brick623]

-Corrected Pericles spawn from Thessalonica (60,29) to Athens (60,25). Apparently I cannot read my own writing :)

[Gedemon]

we need to keep Gorgo and Pericles starting position as far away as possible, either we have Gorgo at Sparta and Pericles at Thessalonica or we have Pericles at Athens and Gorgo at Thessalonica , but we can't have both TSL set at their intended city because we can't prevent to have multiple civilizations of the same type on the map ATM.