Updated nlohmann::basic_json (markdown)

nlohmann::basic_json.md

@@ -68,8 +68,10 @@ Note the type `json` is a typedef for the class `basic_json` with its default ty
 
 - (constructor)
 - (destructor)
-- `operator=`
-- `get_allocator`
+- [**operator=**](https://github.com/nlohmann/json/wiki/nlohmann::basic_json::operator=)<br>
+assigns values to the container
+- [**get_allocator**](https://github.com/nlohmann/json/wiki/nlohmann::basic_json::get_allocator)<br>
+returns the associated allocator 
 
 ### Type support