Updated nlohmann::basicjson::operator T() (markdown)

nlohmann::basicjson::operator-T().md

@@ -23,6 +23,32 @@ Amortized linear in the size of the JSON type.
 
 `std::std::logic_error` if types are not compatible.
 
+## Example
+
+```cpp
+#include <json.hpp>
+#include <vector>
+#include <list>
+#include <unordered_set>
+#include <map>
+#include <string>
+
+int main()
+{
+    nlohmann::json j1 = {1, 2, 3.2, 4.3, 5.4};
+    std::vector<float> v11 = j1;
+    std::list<int> v12 = j1;
+    std::unordered_set<float> v13 = j1;
+
+    nlohmann::json j2 = {{"one", 1}, {"two", 2}, {"three", 3}};
+    std::map<std::string, size_t> v21 = j2;
+    std::multimap<std::string, double> v22 = j2;
+
+    nlohmann::json j3 = "Hello, world";
+    std::string v31 = j3;
+}
+```
+
 ## See also
 
 - [**get**](https://github.com/nlohmann/json/wiki/nlohmann::basicjson::get)<br>