Add a line_cardinality changelog

line_cardinality/CHANGELOG.md

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+# Changelog
+
+This project follows [semantic versioning](https://semver.org/).
+
+# 2.0.0 - 2024-09-15
+
+## Added
+
+- Iter implementations for `HashingLineCounter`
+  - borrowed: `HashingLineCounterIter`. Comes from `HashingLineCounter::iter()` or `(&HashingLineCounter)::into_iter()`
+  - owned: `HashingLineCounterIntoIter`. Comes from `HashingLineCounter::into_iter()`
+- `HashingLineCounter::get()`, which lets you retrieve a count for a specified line.
+
+## Changed
+
+- Nightly Rust is no longer needed to compile line_cardinality.
+- `HashingLineCounter::for_each_report_entry` now calls a `FnMut(&[u8], T)` instead of a `FnMut((&[u8], &T))`
+- `Increment` must now be `Copy`
+
+## Removed
+
+- the underling map used is no longer a `std::collections::HashMap`, and converting into one would be quite expensive so
+  the following functions were removed. You should switch to using the new `get()` function or iter implementations
+  instead.
+  - `HashingLineCounter::as_map()`
+  - `HashingLineCounter::into_map()`
+
+# 1.0.2 - 2024-08-11
+
+No changes: only documentation improvements.
+
+# 1.0.1 - 2024-08-11
+
+## Fixed
+
+- fix repository link on crates.io
+
+# 1.0.0 - 2024-08-11
+
+## Added
+
+- Initial release.