Skeleseller v0.7.7 patch notes (and 0.7.6 🤫)

v0.7.6 was already online, but I never wrote the patch notes for it:

• Improved readability of perks (the costs were hard to read and it wasn't obvious when you could afford the perk).
• Fix some bugs.

v0.7.7 makes these additional changes:

• Revamp enchanter graphics. There are no longer books directly on the ground.
• Add Skeleseller-specific icons for Harvesting Efficiency and the Quick-Move Menu perks.