Altered title so numbers lined up

the numbers in the matrix did not line up, making it
a bit hard to read.

Chapter06_Multivariate_Kalman_Filter/animations.ipynb

@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:a32831d81465dc05ea4e456df090d3ec8c61f145c0cf2ded40441a9b44157792"
+  "signature": "sha256:377230da2977ad633520f0c5380f888bbab4cee5610b7edc0e9b2ed30e0ed7b7"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -243,13 +243,13 @@
        ],
        "metadata": {},
        "output_type": "pyout",
-       "prompt_number": 1,
+       "prompt_number": 2,
        "text": [
-        "<IPython.core.display.HTML at 0x7fc031d109e8>"
+        "<IPython.core.display.HTML at 0x7f599401f5f8>"
        ]
       }
      ],
-     "prompt_number": 1
+     "prompt_number": 2
     },
     {
      "cell_type": "code",
@@ -336,7 +336,7 @@
       "import mkf_internal\n",
       "import matplotlib.pyplot as plt\n",
       "from gif_animate import animate\n",
-      "\n",
+      "import stats\n",
       "def mkf_animate(frame):\n",
       "    global ax\n",
       "    plt.cla()\n",
@@ -350,7 +350,7 @@
       "    cov = frame/15.\n",
       "    P = np.array([[2,cov],[cov,2]])\n",
       "    stats.plot_covariance_ellipse((2,7), cov=P, facecolor='g', alpha=0.2, \n",
-      "                              title='|2 {:.1f}|\\n|{:.1f} 2|'.format(cov, cov))\n",
+      "                              title='|2.0 {:.1f}|\\n|{:.1f} 2.0|'.format(cov, cov))\n",
       "\n",
       "fig = plt.figure()\n",
       "#ax = fig.add_subplot(111, projection='3d')\n",
@@ -363,19 +363,19 @@
        "metadata": {},
        "output_type": "display_data",
        "text": [
-        "<matplotlib.figure.Figure at 0x7fc010a4e898>"
+        "<matplotlib.figure.Figure at 0x7f5973697208>"
        ]
       },
       {
        "metadata": {},
        "output_type": "display_data",
-       "png": 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truncated
+       "png": 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truncated
        "text": [
-        "<matplotlib.figure.Figure at 0x7fc010a4e080>"
+        "<matplotlib.figure.Figure at 0x7f5973697128>"
        ]
       }
      ],
-     "prompt_number": 47
+     "prompt_number": 4
     },
     {
      "cell_type": "markdown",