Fix indexUrl command (#15)

* fix indexUrl

* changeset

Author: andrewblaney

.changeset/slow-moons-play.md

@@ -0,0 +1,5 @@
+---
+"@team-plain/cli": patch
+---
+
+Fix non awaited promise

src/index.js

@@ -31,7 +31,7 @@ function handleError(message, requestId = "–") {
 
 async function indexUrl(url, labelTypeIds = []) {
 	const client = getClient();
-	const res = client.indexDocument({
+	const res = await client.indexDocument({
 		url,
 		labelTypeIds,
 	});