Added/updated snippets for docs (#2318)

docs/doc_examples/a2bd0782aadfd0a902d7f590ee7f49fe.asciidoc

@@ -0,0 +1,20 @@
+// 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-index",
+  mappings: {
+    properties: {
+      content_embedding: {
+        type: "sparse_vector",
+      },
+      content: {
+        type: "text",
+      },
+    },
+  },
+});
+console.log(response);
+----