dataset_id needs to be set at start of block

In order to be replaced by the user's selected dataset_id when coming directly from the dataset dashboard

exploring-word-frequencies.ipynb

@@ -104,13 +104,13 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "dataset_id = \"7e41317e-740f-e86a-4729-20dab492e925\"\n",
     "# Check to see if a dataset file exists\n",
     "# If not, download a dataset using the Constellate Client\n",
     "# The default dataset is Shakespeare Quarterly, 1950-present\n",
     "dataset_file = Path.cwd() / 'data' / 'my_data.jsonl.gz' # Make sure this filepath matches your dataset filename\n",
     "\n",
     "if dataset_file.exists() == False:\n",
-    "    dataset_id = \"7e41317e-740f-e86a-4729-20dab492e925\"\n",
     "    try: \n",
     "        dataset_file = constellate.download(dataset_id, 'jsonl')\n",
     "    except: \n",