[atomics.types.float] Fix typo

Author: Andreas-Krug

source/threads.tex

@@ -5452,7 +5452,7 @@
                                   memory_order = memory_order::seq_cst) noexcept;
   @\placeholdernc{floating-point-type}@ fetch_fminimum_num(@\placeholdernc{floating-point-type}@,
                                   memory_order = memory_order::seq_cst) volatile noexcept;
-  constexpr @\placeholdernc{floating-point-type}@ fetch_fminimum_num(f@\placeholdernc{loating-point-type}@,
+  constexpr @\placeholdernc{floating-point-type}@ fetch_fminimum_num(@\placeholdernc{floating-point-type}@,
                                   memory_order = memory_order::seq_cst) noexcept;
 
     void store_add(@\placeholdernc{floating-point-type}@,