message: Change to angle brackets
diff: @@ -58,7 +58,7 @@ See the [contribution guidelines](https://github.com/nlohmann/json/blob/master/.
  The single required source, file `json.hpp` is in the `single_include/nlohmann` directory or [released here](https://github.com/nlohmann/json/releases). All you need to do is add
  ```cpp
  -#include "nlohmann/json.hpp"
  +#include <nlohmann/json.hpp>
  // for convenience
  using json = nlohmann::json;
  