Fix consistant -> consistent typo (2 occurrences) in GPS.md

[pikammmmm]

Lines 38 and 155 of GPS.md both have consistant (should be consistent) in design-system guidance text.

[badlydrawnrob]

Hi @pikammmmm sorry for the late reply. Good catch!

I'm reworking my personal website and trying to simplify the rules as the GPS.md document is too convoluted and messy.

I'm also wondering if it's worth considering how to integrate with small frameworks (like Pico, which has a class-less version), or just keep it small and contained like print-first-css (which could also do with an edit). My original goal was simple typographic layouts, portfolio, eBooks, PDF, etc.

With the rise of Ai though, I don't see many people editing CSS by hand. For larger web apps I'm not sure I'd create my own framework anymore; I'd probably prototype it quickly with Ai, then tidy up after.