Added a header image

Author: tirthajyoti

Notebooks/Weather-RNN.ipynb

@@ -4,6 +4,8 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
+    "![sf-weather](https://raw.githubusercontent.com/tirthajyoti/Deep-learning-with-Python/master/images/sf-weather.jpg)\n",
+    "\n",
     "# Weather prediction using Recurrent Neural Network\n",
     "### Dr. Tirthajyoti Sarkar, Fremont, CA ([LinkedIn](https://www.linkedin.com/in/tirthajyoti-sarkar-2127aa7/), [Github](https://tirthajyoti.github.io))\n",
     "\n",