Update to 0.3.1.

CONTRIBUTING.md

@@ -71,8 +71,10 @@ The documentation is served at [residentmario.github.io](https://residentmario.g
 git checkout gh-pages
 rm -rf *
 git checkout master -- docs/ examples/ geoplot/
+cd docs
 make html
-mv .docs/_build/html/* ./
+cd ..
+mv docs/_build/html/* ./
 rm -rf docs/ examples/ geoplot/
 git add .
 git commit -m "Publishing update docs..."

setup.py

@@ -3,11 +3,12 @@
     name='geoplot',
     packages=['geoplot'], # this must be the same as the name above
     install_requires=[
-        'matplotlib', 'seaborn', 'pandas', 'geopandas', 'cartopy', 'descartes', 'mapclassify'
+        'matplotlib', 'seaborn', 'pandas', 'geopandas', 'cartopy', 'descartes', 'mapclassify',
+        'contextily>=1.0rc2'
     ],
     extras_require={'develop': ['pytest', 'pytest-mpl', 'scipy']},
     py_modules=['geoplot', 'crs', 'utils', 'ops'],
-    version='0.3.0',
+    version='0.3.1',
     python_requires='>=3.6.0',
     description='High-level geospatial plotting for Python.',
     author='Aleksey Bilogur',