Add the docs.

gpt4all-bindings/python/docs/gpt4all_python.md

@@ -109,5 +109,22 @@ with model.chat_session():
     print(model.current_chat_session)
 ```
 
+### Generating embeddings
+GPT4All includes a super simple means of generating embeddings for your text documents. The embedding model will automatically be downloaded if not installed.
 
+=== "Embed4All Example"
+    ``` py
+    from gpt4all import GPT4All, Embed4All
+    text = 'The quick brown fox jumps over the lazy dog'
+    embedder = Embed4All()
+    output = embedder.embed(text)
+    print(output)
+    ```
+=== "Output"
+    ```
+    [0.034696947783231735, -0.07192722707986832, 0.06923297047615051, ...]
+    ```
+
+### API documentation
 ::: gpt4all.gpt4all.GPT4All
+::: gpt4all.gpt4all.Embed4All