style: fix clippy lints

src/splitter/code.rs

@@ -192,7 +192,7 @@ impl<'cursor> CursorOffsets<'cursor> {
     }
 }
 
-impl<'cursor> Iterator for CursorOffsets<'cursor> {
+impl Iterator for CursorOffsets<'_> {
     type Item = (Depth, Range<usize>);
 
     fn next(&mut self) -> Option<Self::Item> {

tests/code.rs

@@ -1,3 +1,4 @@
+//! Test for `CodeSplitter` behavior.
 use std::fs;
 
 use fake::{Fake, Faker};

tests/markdown.rs

@@ -1,3 +1,4 @@
+//! Test for `MarkdownSplitter` behavior.
 use std::fs;
 
 use fake::{Fake, Faker};

tests/snapshots.rs

@@ -1,3 +1,4 @@
+//! Snapshot tests for regressions in chunk output.
 use std::{fs, ops::RangeInclusive, path::PathBuf};
 
 use cached_path::Cache;

tests/text_splitter.rs

@@ -1,3 +1,4 @@
+//! Test for `TextSplitter` behavior.
 use std::fs;
 
 use fake::{Fake, Faker};