[Feature Request] Enhance Documentation to Highlight Sonnet 4.5 Improvements

Bug Description
Not a bug, im just majorly impressed by the improvement sonnet 4.5 is. Ive been using claude code now for 2 months building my first app ever with 0 coding experience. It was rough to learn the basics and im not nearly done but claude really made it possible in the first place! sonnet 4 was good, opus 4.1 was better but very expensiv to run (usage limits) but sonnet 4.5 really does amazing. Everything i threw at it was handled with grace. So well done guys! keep it up and thank you!