add info about code snippets

Author: devalog

fern/products/ask-fern/pages/getting-started/how-it-works.mdx

@@ -21,13 +21,13 @@ The interface maintains your site's design language while providing a familiar c
 
 The main parts of the Ask Fern system are:
 
-* **Content indexing** – Fern automatically processes your documentation pages,
-  breaking them into semantic chunks and converting each chunk into a vector
-  using sentence embedding models. They're stored in a database that serves as
-  Ask Fern's search index. 
+* **Content and code indexing** – Fern automatically processes your
+  documentation pages and Fern-generated SDK code, breaking them into semantic
+  chunks and converting each chunk into a vector using sentence embedding
+  models. They're stored in a database that serves as Ask Fern's search index. 
 * **Query processing** – When users ask questions, Ask Fern vectorizes their
   query and searches the database to find the most relevant documentation
-  chunks.
+  chunks and code examples.
 * **Response generation** – Ask Fern uses the retrieved chunks as context to
   generate accurate answers with [citations](/ask-fern/features/citations) for the user. If the initial context isn't sufficient, it performs an additional keyword search.