Merge branch 'master' of https://github.com/ageron/handson-ml

* 'master' of https://github.com/ageron/handson-ml: (31 commits)
  fixes docker build issue
  In Python 3, we can use os.makedirs(..., exist_ok=True)
  Update to nltk 3.4.5 (security patch)
  Small spelling improvements to the RNN chapter
  Use fc1_drop instead of fc1, fixes ageron#304
  Update Deepnote links
  Update README.md
  Update README.md
  bst_n_estimators should be argmin(errors) + 1, fixes ageron#445
  Docker image - install PyYAML 3.13 to avoid version conflict
  Add zip, joblib, xgboost, urlextract and most TF-related packages to Docker image
  Update docker image
  Add index=housing.index when wrapping array in a DataFrame, fixes ageron#426
  Crop long outputs to make it easier to visualize the notebooks on github.com
  Remove unused init and new_saver, fixes ageron#409
  Remove unused init node, fixes ageron#398
  Remove nbextensions from installation instructions, fixes ageron#401
  Add a comment about the use of pd.cut()
  Update libraries to latest versions
  add ml-project-checklist (Appendix B of the book)
  ...

01_the_machine_learning_landscape.ipynb

@@ -45,11 +45,11 @@
     "\n",
     "# To plot pretty figures\n",
     "%matplotlib inline\n",
-    "import matplotlib\n",
+    "import matplotlib as mpl\n",
     "import matplotlib.pyplot as plt\n",
-    "plt.rcParams['axes.labelsize'] = 14\n",
-    "plt.rcParams['xtick.labelsize'] = 12\n",
-    "plt.rcParams['ytick.labelsize'] = 12\n",
+    "mpl.rc('axes', labelsize=14)\n",
+    "mpl.rc('xtick', labelsize=12)\n",
+    "mpl.rc('ytick', labelsize=12)\n",
     "\n",
     "# Where to save the figures\n",
     "PROJECT_ROOT_DIR = \".\"\n",
@@ -144,7 +144,6 @@
    ],
    "source": [
     "# Code example\n",
-    "import matplotlib\n",
     "import matplotlib.pyplot as plt\n",
     "import numpy as np\n",
     "import pandas as pd\n",
@@ -2439,7 +2438,6 @@
    ],
    "source": [
     "# Code example\n",
-    "import matplotlib\n",
     "import matplotlib.pyplot as plt\n",
     "import numpy as np\n",
     "import pandas as pd\n",