Rollup merge of #34837 - GuillaumeGomez:better_example, r=nagisa
Rollup merge of #34837 - GuillaumeGomez:better_example, r=nagisa

Improve float number example

r? @nagisa

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