Patch notes - 2/4

Updated the file with some very minor fixes, plus a few larger ones. Specifically:

• Added a credits page with select bibliography, numerical final stats display, and (recursively) patch notes
• Adjusted the stat changes in part 3 to be more significant, in line with other chapters
• Rewrote a portion of part 5 to adjust the interior of the temple of Asklepios for greater period accuracy. (While terracotta votives are not impossible in that time period, they are not attested, whereas wall plaques and secondary deity statues are.)