Fix README build badge (#457)

.github/workflows/python-tests.yml

@@ -1,7 +1,7 @@
 # This workflow will install Python dependencies, run tests and lint with a single version of Python
 # For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
 
-name: Tests
+name: build
 
 on:
   push:

README.md

@@ -1,7 +1,7 @@
 # xDEM: robust analysis of DEMs in Python.
 
 [![Documentation Status](https://readthedocs.org/projects/xdem/badge/?version=latest)](https://xdem.readthedocs.io/en/latest/?badge=latest)
-[![build](https://github.com/GlacioHack/xdem/actions/workflows/python-package.yml/badge.svg)](https://github.com/GlacioHack/xdem/actions/workflows/python-package.yml)
+[![build](https://github.com/GlacioHack/xdem/actions/workflows/python-tests.yml/badge.svg)](https://github.com/GlacioHack/xdem/actions/workflows/python-tests.yml)
 [![Conda Version](https://img.shields.io/conda/vn/conda-forge/xdem.svg)](https://anaconda.org/conda-forge/xdem)
 [![Conda Platforms](https://img.shields.io/conda/pn/conda-forge/xdem.svg)](https://anaconda.org/conda-forge/xdem)
 [![Conda Downloads](https://img.shields.io/conda/dn/conda-forge/xdem.svg)](https://anaconda.org/conda-forge/xdem)