Fixed typo in Readme

Author: NervousNullPtr

readme.md

@@ -7,7 +7,7 @@
 **Declarative logic for iterators and collections.**  
 `quantor` lets you express conditions like `forall`, `exists`, `none`, and `existsforall` directly over data — making filtering, validation, and testing expressive, readable, and idiomatic.
 
-## Why Quantor?
+## Why quantor?
 
 Rust's iterator methods are powerful, but when you want to write logic that reads like: