Merge pull request #59 from kbayliss/main

Update docs to include adding 'ai' to RichText features

docs/installation.md

@@ -7,8 +7,8 @@
 2. Add `wagtail_ai` to your `INSTALLED_APPS`
     ```
     INSTALLED_APPS = [
-        "wagtail_ai",
         # ...
+        "wagtail_ai",
     ]
     ```
 3. Add an AI chat model and backend configuration (by default, `MODEL_ID` can be any model supported by [the "LLM" library](https://llm.datasette.io/en/stable/)).
@@ -26,3 +26,6 @@
     }
     ```
 4. If you're using an OpenAI model, specify an API key using the `OPENAI_API_KEY` environment variable, or by setting it as a key in [`INIT_KWARGS`](ai-backends.md#init-kwargs).
+5. If you've restricted RichText features, add `ai` to your list of features.
+    * By default, Wagtail will include all registered features on `RichTextField` and `RichTextBlock` instances. However, [features can be restricted](https://docs.wagtail.org/en/stable/advanced_topics/customisation/page_editing_interface.html#limiting-features-in-a-rich-text-field).
+    * If you've restricted features, you must add `ai` to the list of features for the Wagtail AI button to appear on RichText fields/blocks.