assembly-line intro.md: fix typo / clarity
possessive, not plural
the word "number" is ambiguous here (is it the "32" number of the type "f32", or the type itself?). \[Numeric] "type" is clear and more precise.
@@ -7,7 +7,7 @@ There are two different categories of numbers in Rust.
The name of a numeric type consists of two parts:
- A letter to specify whether it's a floating-point number (f), unsigned integer (u) or signed integer (i)
-- A number to specify the numbers size in bits. Larger types have a greater range between minimum and maximum values.
+- A number to specify the type's size in bits. Larger types have a greater range between minimum and maximum values.
For floating points it will also allow for more numbers behind the decimal separator.
The following combinations are possible:
