Merge pull request #269 from jmn/patch-1

fixes typo: illegal space

Author: aaronlevy

hack/quickstart/quickstart-gce.md

@@ -22,7 +22,7 @@ Tag the first node as an apiserver node, and allow traffic to 443 on that node.
 
 ```
 $ gcloud compute instances add-tags ${CLUSTER_PREFIX}-core1 --tags ${CLUSTER_PREFIX}-apiserver
-$ gcloud compute firewall-rules create ${CLUSTER_PREFIX}-443 --target-tags= ${CLUSTER_PREFIX}-apiserver --allow tcp:443
+$ gcloud compute firewall-rules create ${CLUSTER_PREFIX}-443 --target-tags=${CLUSTER_PREFIX}-apiserver --allow tcp:443
 ```
 
 ### Bootstrap Master