Remove unnecessary char (#83)

Author: kairen

examples/tcp-dist/cifar10/v1alpha1/pytorch_job_cifar.yaml

@@ -1,6 +1,6 @@
 apiVersion: "kubeflow.org/v1alpha1"
 kind: "PyTorchJob"
-metadata:a
+metadata:
   name: "pytorch-dist-cifar"
 spec:
   backend: "tcp"