mv CommentStyle to .cpp
diff --git a/doc/jsoncpp.dox b/doc/jsoncpp.dox
index 563590c..bf29778 100644
--- a/doc/jsoncpp.dox
+++ b/doc/jsoncpp.dox
@@ -92,13 +92,13 @@
\code
// For convenience, use `writeString()` with a specialized builder.
Json::StreamWriterBuilder wbuilder;
-wbuilder.settings_["indentation"] = "\t";
+wbuilder.settings_["indentation"] = "\t"; // simple Json::Value
std::string document = Json::writeString(wbuilder, root);
// Here, using a specialized Builder, we discard comments and
// record errors as we parse.
Json::CharReaderBuilder rbuilder;
-rbuilder.settings_["collectComments"] = false;
+rbuilder.settings_["collectComments"] = false; // simple Json::Value
std::string errs;
bool ok = Json::parseFromStream(rbuilder, std::cin, &root, &errs);
\endcode