TBR: Fixes gcloud config set

Change-Id: I251c53e4b6db93d502fddcfd077afe9d9428bc59
diff --git a/client/Makefile b/client/Makefile
index 775d131..26b80f4 100644
--- a/client/Makefile
+++ b/client/Makefile
@@ -15,7 +15,7 @@
 .PHONY: deploy-staging
 deploy-staging: public
 	git rev-parse --verify HEAD >> public/version
-	gcloud config set account vanadium-staging
+	gcloud config set project vanadium-staging
 	gsutil -m rsync -d -r public gs://staging.playground.v.io
 
 public: build/playground.js $(css_files) $(static_files) src/example_bundles