Added/updated snippets for docs (#2318)

docs/doc_examples/36d229f734adcdab00be266a7ce038b1.asciidoc

@@ -0,0 +1,19 @@
+// This file is autogenerated, DO NOT EDIT
+// Use `node scripts/generate-docs-examples.js` to generate the docs examples
+
+[source, js]
+----
+const response = await client.indices.create({
+  index: "my-bit-vectors",
+  mappings: {
+    properties: {
+      my_vector: {
+        type: "dense_vector",
+        dims: 40,
+        element_type: "bit",
+      },
+    },
+  },
+});
+console.log(response);
+----