magazine-cutout: One sentence per line
# Introduction
-Rust's entry API provides a view into a single entry in map, which may be either a `HashMap` or a `BTreeMap`. The entry may be either occupied and vacant, and the API provides methods to modify the contents of the entry.
+Rust's entry API provides a view into a single entry in map, which may be either a `HashMap` or a `BTreeMap`.
+The entry may be either occupied and vacant, and the API provides methods to modify the contents of the entry.
