Update readme

(cherry picked from commit c110c6eca7)
2016-10-23 11:55:51 +02:00
parent b8540e613e
commit 6f27f98103
1 changed files with 2 additions and 0 deletions
@@ -91,6 +91,8 @@ An object of any user-defined type for which there is an overloaded

 .. code:: c++

+    #include "fmt/ostream.h"
+
    class Date {
      int year_, month_, day_;
     public: