[alg.foreach] Fix indentation (#8346)

Author: Andreas-Krug

source/algorithms.tex

@@ -4729,8 +4729,8 @@
 
 \begin{itemdecl}
 template<@\exposconcept{execution-policy}@ Ep, @\libconcept{random_access_iterator}@ I, @\libconcept{sized_sentinel_for}@<I> S,
-          class Proj = identity,
-          @\libconcept{indirectly_unary_invocable}@<projected<I, Proj>> Fun>
+         class Proj = identity,
+         @\libconcept{indirectly_unary_invocable}@<projected<I, Proj>> Fun>
   I ranges::for_each(Ep&& exec, I first, S last, Fun f, Proj proj = {});
 template<@\exposconcept{execution-policy}@ Ep, @\exposconcept{sized-random-access-range}@ R, class Proj = identity,
          @\libconcept{indirectly_unary_invocable}@<projected<iterator_t<R>, Proj>> Fun>