Rollup merge of #35465 - cardoe:pattern-book-update, r=steveklabnik
Rollup merge of #35465 - cardoe:pattern-book-update, r=steveklabnik

book: update example patterns to be more clear

When using Point { x: 0, y: 0 } and showing pattern matching decomposing
x and y individually its hard to understand. By using a different value
for x and a different value for y it is more clear.

aidancully/rust,graydon/rust,GBGamer/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,GBGamer/rust,graydon/rust,GBGamer/rust,graydon/rust,aidancully/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust