[simd.ctor] Fix typos (#7779)

Author: hewillk

source/numerics.tex

@@ -17453,19 +17453,19 @@
 \begin{itemize}
  \item
    If the template parameter pack \tcode{Flags} contains
-   \tcode{\exposid{aligned-flag}}, \tcode{ranges::data(range)} points to
+   \tcode{\exposid{aligned-flag}}, \tcode{ranges::data(r)} points to
    storage aligned by \tcode{alignment_v<basic_simd,
    ranges::range_value_t<R>>}.
  \item
    If the template parameter pack \tcode{Flags} contains
-   \tcode{\exposid{overaligned-flag}<N>}, \tcode{ranges::data(range)} points to
+   \tcode{\exposid{overaligned-flag}<N>}, \tcode{ranges::data(r)} points to
    storage aligned by \tcode{N}.
 \end{itemize}
 
 \pnum
 \effects
 Initializes the $i^\text{th}$ element with \tcode{mask[$i$] ?
-static_cast<T>(\brk{}ranges::\brk{}data(range)[$i$]) : T()} for all $i$ in the
+static_cast<T>(\brk{}ranges::\brk{}data(r)[$i$]) : T()} for all $i$ in the
 range of \range{0}{size()}.
 \end{itemdescr}