fix(ai): fix warning box

Author: bene2k1

ai-data/generative-apis/how-to/use-function-calling.mdx

@@ -186,7 +186,7 @@ if response.choices[0].message.tool_calls:
 
 ### Parallel function calling
 
-<Message type="warning">
+<Message type="important">
     Meta models do not support parallel tool calls.
 </Message>
 
@@ -327,5 +327,5 @@ For more information about function calling and advanced implementations, refer
 Function calling significantly extends the capabilities of language models by allowing them to interact with external tools and APIs. 
 
 <Message type="note">
-  We can't wait to see what you will build with function calls. Tell us what you are up to, share your experiments on Scaleway's Slack community #ai 
+  We can't wait to see what you will build with function calls. Tell us what you are up to, share your experiments on Scaleway's [Slack community](https://slack.scaleway.com/) #ai 
 </Message>