//! The following example uses [`Option`] to create an optional box of
//! [`i32`]. Notice that in order to use the inner [`i32`] value first, the
//! `check_optional` function needs to use pattern matching to
-//! determine whether the box has a value (i.e. it is [`Some(...)`][`Some`]) or
+//! determine whether the box has a value (i.e., it is [`Some(...)`][`Some`]) or
//! not ([`None`]).
//!
//! ```