Reorder awkward sentence about generic params to functions

Author: RadicalZephyr

src/items/generics.md

@@ -23,7 +23,7 @@
 Functions, type aliases, structs, enumerations, unions, traits and
 implementations may be *parameterized* by types and lifetimes. These parameters
 are listed in angle <span class="parenthetical">brackets (`<...>`)</span>,
-usually immediately after and before its definition the name of the item. For
+usually immediately after the name of the item and before its definition. For
 implementations, which don't have a name, they come directly after `impl`.
 Lifetime parameters must be declared before type parameters. Some examples of
 items with type and lifetime parameters: