[Vectorize] Add missing comma in Python code block (#25922)

* syntax error - adding missing comma after name field in the Python script for creating indexes

---------

Co-authored-by: Pedro Sousa <[email protected]>

Author: DanniBot

src/content/docs/vectorize/best-practices/create-indexes.mdx

@@ -55,7 +55,7 @@ headers = {
 }
 
 body = {
-	"name": "demo-index"
+	"name": "demo-index",
 	"description": "some index description",
   "config": {
     "dimensions": 1024,
@@ -89,7 +89,6 @@ The following table highlights some example embeddings models and their output d
 | Google Cloud - `multimodalembedding`     | 1408              | Multi-modal (text, images) |
 
 :::note[Learn more about Workers AI]
-
 Refer to the [Workers AI documentation](/workers-ai/models/#text-embeddings) to learn about its built-in embedding models.
 :::