Add missing code block ending in the docs

docs/_core_features/embeddings.md

@@ -138,6 +138,7 @@ puts embedding.vectors.first.length # => 1536
 
 # The model used
 puts embedding.model  # => "text-embedding-3-small"
+```
 
 ## Using Embedding Results
 
@@ -233,4 +234,4 @@ Now that you understand embeddings, you might want to explore:
 
 *   [Chatting with AI Models]({% link _core_features/chat.md %}) for interactive conversations.
 *   [Using Tools]({% link _core_features/tools.md %}) to extend AI capabilities.
-*   [Error Handling]({% link _advanced/error-handling.md %}) for building robust applications.
+*   [Error Handling]({% link _advanced/error-handling.md %}) for building robust applications.