Update how-to-create-and-use-shared-ptr-instances_3.cpp

Author: mikeblome

docs/cpp/codesnippet/CPP/how-to-create-and-use-shared-ptr-instances_3.cpp

@@ -1,4 +1,4 @@
-    vector<shared_ptr<Song>> v{
+    vector<shared_ptr<Song>> v {
       make_shared<Song>(L"Bob Dylan", L"The Times They Are A Changing"),
       make_shared<Song>(L"Aretha Franklin", L"Bridge Over Troubled Water"),
       make_shared<Song>(L"Thal�a", L"Entre El Mar y Una Estrella")
@@ -13,4 +13,4 @@
     for (const auto& s : v2)
     {
         wcout << s->artist << L":" << s->title << endl;
-    }
+    }