Fix 2019_11_30_datastart tutorial

Note: mandatory check (NEED_CHECK) was skipped ref:69ce8e73797bf9611c5f16d03295a73382bcf947

Author: nikitxskv

events/2019_11_30_datastart.ipynb

@@ -17,7 +17,7 @@
  "id": "0UAHpnD8fFtZ"
  },
  "source": [
- "[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/catboost/tutorials/blob/master/tools/google_colaboratory_cpu_vs_gpu_tutorial.ipynb)\n",
+ "[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/catboost/tutorials/blob/master/events/2019_11_30_datastart.ipynb)\n",
  "\n",
  "**Set GPU as hardware accelerator**\n",
  "\n",