Explain motivation behind lifetimes
Explain motivation behind lifetimes

Start the lifetime section with an explanation of the issues that
lack of explicit lifetimes cause and how lifetimes alleviate these.

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