DOC: update mapclassify url and tooling for dash/zeal docs (#1090)

doc/Makefile

@@ -152,3 +152,8 @@ doctest:
 	$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
 	@echo "Testing of doctests in the sources finished, look at the " \
 	      "results in $(BUILDDIR)/doctest/output.txt."
+
+dash: html
+	rm -rf geopandas.docset
+	doc2dash --name=geopandas _build/html
+

doc/environment.yml

@@ -25,3 +25,4 @@ dependencies:
 - geoplot=0.3.0
 - sphinx-gallery=0.4.0
 - jinja2=2.10
+- doc2dash

doc/source/install.rst

@@ -173,7 +173,7 @@ For plotting, these additional packages may be used:
 
 .. _psycopg2: https://pypi.python.org/pypi/psycopg2
 
-.. _mapclassify: https://mapclassify.readthedocs.io/en/latest/
+.. _mapclassify: http://pysal.org/mapclassify
 
 .. _pyproj: https://github.com/jswhit/pyproj