Pericles and Themistocles improvements
requested to merge real_tabasco_sauce/0-a-d-community-mod-unit-specific-upgrades:athen_heroes into main
Summary
removed unit specific upgrades, reduced Pericles technology discount to 10%, removed the term democracy. (Summarize the changes)
Rationale
pericles and themosticles should be balanced now. (Justify the change, possibly highlight risks)