Minor fix in recipe 8.8.

Author: rossant

notebooks/chapter08_ml/08_clustering.ipynb

@@ -1,7 +1,7 @@
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-  "signature": "sha256:de953a6d465366deb73dd02491c77638cb641b43aef06399ce742fff0a50109f"
+  "signature": "sha256:0c100c427d041c0911234cc8f88a51e3ac4f09460e7e617d6f44ae29f06356d7"
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@@ -170,7 +170,7 @@
       "plt.title(\"True labels\");\n",
       "for i, est in enumerate([\n",
       "        clu.SpectralClustering(3),\n",
-      "        clu.Ward(3),\n",
+      "        clu.AgglomerativeClustering(3),\n",
       "        clu.MeanShift(),\n",
       "        clu.AffinityPropagation(),\n",
       "        clu.DBSCAN(),\n",