Formatting changes, update dependencies

Cargo.toml

@@ -21,7 +21,7 @@ panic = 'abort'
 random = ["rand"]
 
 [dependencies]
-rand = { version = "^0.7", optional = true }
+rand = { version = "^0.8", optional = true }
 unicode-segmentation = "1.9.0"
 
 [dev-dependencies]

README.md

@@ -69,12 +69,13 @@ This is list of cases that convert\_case supports.  Some cases are simply aliase
 Breaking changes:
 
 * Rename `Case::ScreamingSnake` to `Case::Constant`.
-* Add `Case::Sentence` (sentence pattern and space delimiter)
-* `Casing` trait implemented for `Arc<str>` and `Rc<str>` again
+* Add `Case::Sentence` (sentence pattern and space delimiter.)
+* `Casing` trait implemented for `Arc<str>` and `Rc<str>` again.
 
 Other changes:
 
 * Remove most imports from doc comments.
+* Remove loop over `str::chars` in favor of `graphemes` from `unicode-segmentation`.
 
 ## Other Projects
 

src/pattern.rs

@@ -3,7 +3,7 @@ use std::iter;
 #[cfg(feature = "random")]
 use rand::prelude::*;
 
-use unicode_segmentation::UnicodeSegmentation; //, GraphemeCursor};
+use unicode_segmentation::UnicodeSegmentation;
 
 #[derive(Debug, Eq, PartialEq, Clone, Copy)]
 enum WordCase {

src/segmentation.rs

@@ -1,7 +1,7 @@
 #[cfg(test)]
 use strum::EnumIter;
 
-use unicode_segmentation::UnicodeSegmentation; //, GraphemeCursor};
+use unicode_segmentation::UnicodeSegmentation;
 
 /// A boundary defines how a string is split into words.  Some boundaries, `Hyphen`, `Underscore`,
 /// and `Space`, consume the character they split on, whereas the other boundaries