update PyPI downloads badge (#210)

* getting working

* bah warnings!

* docs in a good place

* add favicon

* warning on incomplete API

* note on keeping docs from deploying on PRs

* organizing function summaries

* api function grouping

* api types

* changelog

* admonitions

* api clean up

* compute time example

* function defs organization

* looking good

* DRY-up readme!

* clean up links

* api_comparison

* clean up readme

* shmallish changes

* absolute links in the readme.md

* fix readme links

* use the fancier markdown link reference syntax

* a version of the versioning docs

* make it personal

* 'with' a little more parallelism in our sentences

* Update docs/api_comparison.md

Co-authored-by: Kyle Barron <[email protected]>

* clean makefile

* docs

* move timings to a single table

* clean

* Update docs/api_reference.md

Co-authored-by: Isaac Brodsky <[email protected]>

* represent

* default api likes its str's

* docs nits

* update PyPI downloads badge

Co-authored-by: Kyle Barron <[email protected]>
Co-authored-by: Isaac Brodsky <[email protected]>

readme.md

@@ -5,7 +5,7 @@
 <!-- TODO: have a nice 3d image of hexagons up front -->
 
 [![PyPI version](https://badge.fury.io/py/h3.svg)](https://badge.fury.io/py/h3)
-[![PyPI downloads](https://pypip.in/d/h3/badge.png)](https://pypistats.org/packages/h3)
+[![PyPI downloads](https://img.shields.io/pypi/dm/h3.svg)](https://pypistats.org/packages/h3)
 [![conda](https://img.shields.io/conda/vn/conda-forge/h3-py.svg)](https://anaconda.org/conda-forge/h3-py)
 [![version](https://img.shields.io/badge/h3-v3.7.1-blue.svg)](https://github.com/uber/h3/releases/tag/v3.7.1)
 [![version](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/uber/h3-py/blob/master/LICENSE)