docs: drop Fable 5 reference from README positioning

Fable 5 was retired; keep the general 'pricier models → saved tokens
worth more' point but remove the stale model name-drop.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: shahinyanm

README.md

@@ -2,7 +2,7 @@
 
 **Token-efficient AI coding, enforced.** Cuts context consumption in AI coding assistants by up to **90%** without changing the way you work.
 
-> **Why it matters more now:** as frontier models move up in price — Claude's Fable 5 is the most capable (and most expensive-per-token) tier yet — the tokens you *don't* spend reading code are worth more, not less. The savings are in tokens; the value is in tokens × price. Token Pilot keeps the expensive main thread lean so the premium model spends its budget on reasoning, not on re-reading files.
+> **Why it matters more now:** as frontier models move up in price, the tokens you *don't* spend reading code are worth more, not less. The savings are in tokens; the value is in tokens × price. Token Pilot keeps the expensive main thread lean so the premium model spends its budget on reasoning, not on re-reading files.
 
 Three layers, each useful on its own, stronger together: