More small fixes in geopandas notebooks

Author: jorisvandenbossche

_solved/02-introduction-geospatial-data.ipynb

@@ -893,6 +893,7 @@
     }
    ],
    "source": [
+    "# fig, ax = plt.subplots(figsize=(15, 10))\n",
     "ax = countries.plot(edgecolor='k', facecolor='none', figsize=(15, 10))\n",
     "rivers.plot(ax=ax)\n",
     "cities.plot(ax=ax, color='red')\n",

_solved/04-spatial-relationships-joins.ipynb

@@ -543,6 +543,7 @@
     "* `touches`\n",
     "* `within`\n",
     "* `covers`\n",
+    "* `covered_by`\n",
     "\n",
     "\n",
     "See https://shapely.readthedocs.io/en/stable/manual.html#predicates-and-relationships for an overview of those methods.\n",