Revise editorially

Author: traviscross

src/dynamically-sized-types.md

@@ -14,7 +14,7 @@ Such types can only be used in certain cases:
 r[dynamic-sized.pointer-types]
 * [Pointer types] to <abbr title="dynamically sized types">DSTs</abbr> are
   sized but have twice the size of pointers to sized types
-    * Pointers to slices and `str` also store the number of elements of the slice.
+    * Pointers to slices and `str` also store the number of elements.
     * Pointers to trait objects also store a pointer to a vtable.
 
 r[dynamic-sized.question-sized]

src/type-layout.md

@@ -109,8 +109,7 @@ Slices have the same layout as the section of the array they slice.
 r[layout.str]
 ## `str` Layout
 
-String slices are a UTF-8 representation of characters that have the same layout as slices of type `[u8]`.
-A reference `&str` has the same layout as a reference `&[u8]`.
+String slices are a UTF-8 representation of characters that have the same layout as slices of type `[u8]`. A reference `&str` has the same layout as a reference `&[u8]`.
 
 r[layout.tuple]
 ## Tuple Layout