Updated nlohmann::basicjson (markdown)

nlohmann::basicjson.md

@@ -1,3 +1,36 @@
+Defined in header `json.hpp`
+
+```cpp
+template <
+    class ObjectType = std::map,
+    class ArrayType = std::vector,
+    class StringType = std::string,
+    class BooleanType = bool,
+    class NumberIntegerType = int64_t,
+    class NumberFloatType = double,
+    class Allocator = std::allocator
+> class basic_json;
+```
+
+## Template parameters
+
+## Member types
+
+| Member type | Definition |
+| --- | --- |
+| `value_type` | `basic_json` |
+| `reference` | `value_type&` |
+| `const_reference` | `const value_type&` |
+| `difference_type` | `std::ptrdiff_t` |
+| `size_type` | `std::size_t` |
+| `allocator_type` | `Allocator<basic_json>` |
+
+## Member functions
+
+### Element access
+
+### Iterators
+
 ### Capacity
 
 - [**empty**](https://github.com/nlohmann/json/wiki/nlohmann::basicjson::empty)<br>
@@ -14,4 +47,6 @@ _public member function_
 
 - [**erase**](https://github.com/nlohmann/json/wiki/nlohmann::basicjson::erase)<br>
 erases elements<br>
-_public member function_
+_public member function_
+
+### Lookup