Added/updated snippets for docs (#2318)

docs/doc_examples/c48b8bcd6f41e0d12b58e854e09ea893.asciidoc

@@ -0,0 +1,14 @@
+// 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.index({
+  index: "example",
+  document: {
+    location:
+      "MULTIPOLYGON (((1002.0 200.0, 1003.0 200.0, 1003.0 300.0, 1002.0 300.0, 102.0 200.0)), ((1000.0 100.0, 1001.0 100.0, 1001.0 100.0, 1000.0 100.0, 1000.0 100.0), (1000.2 100.2, 1000.8 100.2, 1000.8 100.8, 1000.2 100.8, 1000.2 100.2)))",
+  },
+});
+console.log(response);
+----