Added spaces

ml2/3_5_Exercise_1.ipynb

@@ -444,11 +444,11 @@
    "outputs": [],
    "source": [
     "def substrings_in_string(big_string, substrings):\n",
-    "for substring in substrings:\n",
-    "    if big_string.find(substring) != 1:\n",
-    "       return substring\n",
-    "print(big_string)\n",
-    "return np.nan\n",
+    "    for substring in substrings:\n",
+    "        if big_string.find(substring) != 1:\n",
+    "           return substring\n",
+    "    print(big_string)\n",
+    "    return np.nan\n",
     "#Turning cabin number into Deck\n",
     "cabin_list = ['A', 'B', 'C', 'D', 'E', 'F', 'T', 'G', 'Unknown']\n",
     "df['Deck']=df['Cabin'].map(lambda x: substrings_in_string(x, cabin_list))"