Doc update

Author: danielaparker

doc/ref/json_type_traits.md

@@ -42,6 +42,25 @@ which inherits from [false_type](http://www.cplusplus.com/reference/type_traits/
 This traits class may be specialized for a user-defined type with a [true_type](http://www.cplusplus.com/reference/type_traits/true_type/) value to
 inform the `jsoncons` library that the type is already specialized.  
 
+### Specializations
+
+`T`|`j.is<T>()`|`j.as<T>()`|j is assignable from `T`
+--------|-----------|--------------|---
+`Json`|`true`|self|<em>&#x2713;</em>
+`Json::object`|`true` if `j.is_object()`, otherwise `false`|Compile-time error|<em>&#x2713;</em>
+`Json::array`|`true` if `j.is_array()`, otherwise `false`|Compile-time error|<em>&#x2713;</em>
+`bool`|`true` if `j.is_bool()`, otherwise `false`|as `bool`|<em>&#x2713;</em>
+`null_type`|`true` if `j.is_null()`, otherwise `false`|`null_type()` value if j.is_null(), otherwise throws|<em>&#x2713;</em>
+`const char_type*`|`true` if string, otherwise `false`|as `const char_type*`|<em>&#x2713;</em>
+`char_type*`|`true` if `j.is_string()`, otherwise `false`|Compile-time error|<em>&#x2713;</em>
+`integral types`|`true` if `j.is_int64()` or `j.is_uint64()` and value is in range, otherwise `false`|j numeric value cast to `T`|<em>&#x2713;</em>
+`floating point types`|`true` if j.is_double() and value is in range, otherwise `false`|j numeric value cast to `T`|<em>&#x2713;</em>
+`string`|`true` if j.is_string(), otherwise `false`|as string|<em>&#x2713;</em>
+STL sequence container (other than string) e.g. std::vector|`true` if array and each value is assignable to a `Json` value, otherwise `false`|if array and each value is convertible to `value_type`, as container, otherwise throws|<em>&#x2713;</em>
+STL associative container e.g. std::map|`true` if object and each `mapped_type` is assignable to `Json`, otherwise `false`|if object and each member value is convertible to `mapped_type`, as container|<em>&#x2713;</em>
+`std::tuple`|`true` if `j.is_array()` and each array element is assignable to the corresponding `tuple` element, otherwise false|tuple with array elements converted to tuple elements|<em>&#x2713;</em>
+`std::pair`|`true` if `j.is_array()` and `j.size()==2` and each array element is assignable to the corresponding pair element, otherwise false|pair with array elements converted to pair elements|<em>&#x2713;</em>
+
 ### Convenience Macros
 
 The `jsoncons` library provides a number of macros that can be used to generate the code to specialize `json_type_traits`
@@ -194,25 +213,6 @@ requires that all member names be present in the JSON. The class template must h
 
 These macro declarations must be placed at global scope, outside any namespace blocks, and `class_name` must be a fully namespace qualified name.
 
-### Specializations
-
-`T`|`j.is<T>()`|`j.as<T>()`|j is assignable from `T`
---------|-----------|--------------|---
-`Json`|`true`|self|<em>&#x2713;</em>
-`Json::object`|`true` if `j.is_object()`, otherwise `false`|Compile-time error|<em>&#x2713;</em>
-`Json::array`|`true` if `j.is_array()`, otherwise `false`|Compile-time error|<em>&#x2713;</em>
-`bool`|`true` if `j.is_bool()`, otherwise `false`|as `bool`|<em>&#x2713;</em>
-`null_type`|`true` if `j.is_null()`, otherwise `false`|`null_type()` value if j.is_null(), otherwise throws|<em>&#x2713;</em>
-`const char_type*`|`true` if string, otherwise `false`|as `const char_type*`|<em>&#x2713;</em>
-`char_type*`|`true` if `j.is_string()`, otherwise `false`|Compile-time error|<em>&#x2713;</em>
-`integral types`|`true` if `j.is_int64()` or `j.is_uint64()` and value is in range, otherwise `false`|j numeric value cast to `T`|<em>&#x2713;</em>
-`floating point types`|`true` if j.is_double() and value is in range, otherwise `false`|j numeric value cast to `T`|<em>&#x2713;</em>
-`string`|`true` if j.is_string(), otherwise `false`|as string|<em>&#x2713;</em>
-STL sequence container (other than string) e.g. std::vector|`true` if array and each value is assignable to a `Json` value, otherwise `false`|if array and each value is convertible to `value_type`, as container, otherwise throws|<em>&#x2713;</em>
-STL associative container e.g. std::map|`true` if object and each `mapped_type` is assignable to `Json`, otherwise `false`|if object and each member value is convertible to `mapped_type`, as container|<em>&#x2713;</em>
-`std::tuple`|`true` if `j.is_array()` and each array element is assignable to the corresponding `tuple` element, otherwise false|tuple with array elements converted to tuple elements|<em>&#x2713;</em>
-`std::pair`|`true` if `j.is_array()` and `j.size()==2` and each array element is assignable to the corresponding pair element, otherwise false|pair with array elements converted to pair elements|<em>&#x2713;</em>
-
 ### Examples
 
 [Convert from and to standard library sequence containers](#A1)