Fixed: Added image tag to scikit BYO example

Author: djarpin

advanced_functionality/scikit_bring_your_own/scikit_bring_your_own.ipynb

@@ -401,7 +401,7 @@
    "source": [
     "account = sess.boto_session.client('sts').get_caller_identity()['Account']\n",
     "region = sess.boto_session.region_name\n",
-    "image = '{}.dkr.ecr.{}.amazonaws.com/decision-trees-sample'.format(account, region)\n",
+    "image = '{}.dkr.ecr.{}.amazonaws.com/decision-trees-sample:latest'.format(account, region)\n",
     "\n",
     "tree = sage.estimator.Estimator(image,\n",
     "                       role, 1, 'ml.c4.2xlarge',\n",