Clearer sentence structure (#44)

* Update README.md

* Update lib.rs

README.md

@@ -10,7 +10,7 @@ Fast and accurate evaluation of the real valued parts of the principal and
 secondary branches of the [Lambert W function](https://en.wikipedia.org/wiki/Lambert_W_function)
 with the method of Toshio Fukushima \[[1](#references)\].
 
-This method is not iterative, and it doesn't allocate memory or use recursion or loops,
+This method is not iterative, it doesn't allocate memory, and it doesn't use recursion or loops
 except for what might already be included in the implementations of
 the logarithm and square root functions.
 

src/lib.rs

@@ -3,7 +3,7 @@
 //! Fast and accurate evaluation of the real valued parts of the principal and secondary branches of the [Lambert W function](https://en.wikipedia.org/wiki/Lambert_W_function)
 //! with the method of Toshio Fukushima \[[1](#references)\].
 //!
-//! This method is not iterative, and it doesn't allocate memory or use recursion or loops,
+//! This method is not iterative, it doesn't allocate memory, and it doesn't use recursion or loops
 //! except for what might already be included in the implementations of the logarithm and square root functions.
 //!
 //! Instead it works by dividing the function’s domain into subdomains. For each one,