Address TODO about documenting the unavailability of replace{,_view} on MSVC

in C++17 mode.

doc/tutorial.qbk

@@ -3036,6 +3036,8 @@ overloads.
 
 [heading _replace_]
 
+[important _replace_ and _replace_v_ are not available on MSVC in C++17 mode.]
+
 _replace_ creates _replace_vs_.  _replace_v_ is a `std::views`-style view.  It
 produces a range of subranges from the parsed range `r` and the given
 replacement range `replacement`.  Wherever in the parsed range a match to the

test/replace.cpp

@@ -14,7 +14,6 @@
 
 #include <list>
 
-// TODO: Document that replace{,_view} are not supported in MSVC in C++17 mode.
 #if !defined(_MSC_VER) || BOOST_PARSER_USE_CONCEPTS
 
 namespace bp = boost::parser;