Added spacy en_core_web_sm model download in Ch03

Author: Jitin Kapila

Diff for: Ch3/07_DocVectors_using_averaging_Via_spacy.ipynb

@@ -14,7 +14,17 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 0,
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# downloading en_core_web_sm, assuming spacy is already installed\n",
+    "!python -m spacy download en_core_web_sm"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
    "metadata": {
     "colab": {},
     "colab_type": "code",
@@ -371,7 +381,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 0,
+   "execution_count": null,
    "metadata": {
     "colab": {},
     "colab_type": "code",
@@ -401,9 +411,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.10"
+   "version": "3.7.3"
   }
  },
  "nbformat": 4,
- "nbformat_minor": 1
+ "nbformat_minor": 4
 }