[mdspan.submdspan.strided.slice] Use member typedefs instead of template arguments

Author: tkoeppe

source/containers.tex

@@ -21553,9 +21553,9 @@
     using extent_type = ExtentType;
     using stride_type = StrideType;
 
-    [[no_unique_address]] OffsetType offset{};
-    [[no_unique_address]] ExtentType extent{};
-    [[no_unique_address]] StrideType stride{};
+    [[no_unique_address]] offset_type offset{};
+    [[no_unique_address]] extent_type extent{};
+    [[no_unique_address]] stride_type stride{};
   };
 }
 \end{codeblock}
@@ -21570,7 +21570,7 @@
 are signed or unsigned integer types, or
 model \exposconcept{integral-constant-like}.
 \begin{note}
-\tcode{strided_slice\{.offset=1, .extent=10, .stride=3\}}
+\tcode{strided_slice\{.offset = 1, .extent = 10, .stride = 3\}}
 indicates the indices \tcode{1}, \tcode{4}, \tcode{7}, and \tcode{10}.
 Indices are selected from the half-open interval \range{1}{1 + 10}.
 \end{note}