diff --git a/website/docs/api/top-level.md b/website/docs/api/top-level.md
index 43f075b53..ff125d2eb 100644
--- a/website/docs/api/top-level.md
+++ b/website/docs/api/top-level.md
@@ -351,6 +351,24 @@ the two-letter language code.
 | `name` | unicode    | Two-letter language code, e.g. `'en'`. |
 | `cls`  | `Language` | The language class, e.g. `English`.    |
 
+### util.lang_class_is_loaded (#util.lang_class_is_loaded tag="function" new="2.1")
+
+Check whether a `Language` class is already loaded. `Language` classes are
+loaded lazily, to avoid expensive setup code associated with the language data.
+
+> #### Example
+>
+> ```python
+> lang_cls = util.get_lang_class("en")
+> assert util.lang_class_is_loaded("en") is True
+> assert util.lang_class_is_loaded("de") is False
+> ```
+
+| Name        | Type    | Description                            |
+| ----------- | ------- | -------------------------------------- |
+| `name`      | unicode | Two-letter language code, e.g. `'en'`. |
+| **RETURNS** | bool    | Whether the class has been loaded.     |
+
 ### util.load_model {#util.load_model tag="function" new="2"}
 
 Load a model from a shortcut link, package or data path. If called with a
diff --git a/website/docs/api/vocab.md b/website/docs/api/vocab.md
index 64e153331..cd21a91d6 100644
--- a/website/docs/api/vocab.md
+++ b/website/docs/api/vocab.md
@@ -288,11 +288,12 @@ Load state from a binary string.
 > assert type(PERSON) == int
 > ```
 
-| Name                                 | Type          | Description                                   |
-| ------------------------------------ | ------------- | --------------------------------------------- |
-| `strings`                            | `StringStore` | A table managing the string-to-int mapping.   |
-| `vectors` <Tag variant="new">2</Tag> | `Vectors`     | A table associating word IDs to word vectors. |
-| `vectors_length`                     | int           | Number of dimensions for each word vector.    |
+| Name                                          | Type          | Description                                                  |
+| --------------------------------------------- | ------------- | ------------------------------------------------------------ |
+| `strings`                                     | `StringStore` | A table managing the string-to-int mapping.                  |
+| `vectors` <Tag variant="new">2</Tag>          | `Vectors`     | A table associating word IDs to word vectors.                |
+| `vectors_length`                              | int           | Number of dimensions for each word vector.                   |
+| `writing_system` <Tag variant="new">2.1</Tag> | dict          | A dict with information about the language's writing system. |
 
 ## Serialization fields {#serialization-fields}