Expand line breaks section

docs/formatter.md

@@ -407,7 +407,7 @@ below.
 #### Quotes
 
 Ruff will use the configured quote style for the f-string expression unless doing so would result in
-invalid syntax for the target Python version or it results in more backslashes than the original
+invalid syntax for the target Python version or requires more backslash escapes than the original
 expression. Specifically, Ruff will preserve the original quote style for the following cases:
 
 When the target Python version is < 3.12 and a [self-documenting f-string expressions] contains a string
@@ -453,9 +453,12 @@ f"outer f-string {f'nested f-string {f"another nested f-string"} end'} end"
 #### Line breaks
 
 Starting with Python 3.12 ([PEP 701](https://peps.python.org/pep-0701/)), expression parts of an f-string can
-span multiple lines. Ruff adopts a similar heuristic as [Prettier](https://prettier.io/docs/en/next/rationale.html#template-literals)
-for when to introduce a line break in an f-string expression: it introduces line breaks only
-if there was already a line break within any of the expression parts of an f-string.
+span multiple lines. Ruff needs to decide when to introduce a line break in an f-string expression.
+This depends on the semantic content of the expression parts of an f-string - for example,
+introducing a line break in the middle of a natural-language sentence is undesirable. Since Ruff
+doesn't have enough information to make that decision, it uses a heuristic similar to [Prettier](https://prettier.io/docs/en/next/rationale.html#template-literals):
+it will only split the expression parts of an f-string across multiple lines if there was already a line break
+within any of the expression parts.
 
 For example, the following code:
 
@@ -485,7 +488,7 @@ f"this f-string has a multiline expression {['red', 'green', 'blue', 'yellow']}
 ```
 
 If you want Ruff to split an f-string across multiple lines, ensure there's a linebreak somewhere within the
-`{...}` expression.
+`{...}` parts of an f-string.
 
 [self-documenting f-string expressions]: https://realpython.com/python-f-strings/#self-documenting-expressions-for-debugging