Changing "PC" to "PCs" indicates the mod works for that category of hardware.
A more natural, readable version of that text would be: Why this works: Changing "PC" to "PCs" indicates the mod works
Properly capitalizing the game title (GTA San Andreas) and acronyms (PC, RAM) makes it look professional. making it easier to scan.
Using parentheses for the "2GB RAM" requirement separates the technical spec from the descriptive title, making it easier to scan. Changing "PC" to "PCs" indicates the mod works