Fix badges and codecov upload

.github/workflows/tests.yml

@@ -56,3 +56,6 @@ jobs:
 
       - name: Upload coverage reports to Codecov
         uses: codecov/codecov-action@v3
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+

README.md

@@ -1,10 +1,10 @@
 # ![logo](https://raw.githubusercontent.com/mar10/nutree/main/docs/nutree_48x48.png) nutree
 
-[![Tests](https://github.com/mar10/nutree/actions/workflows/tests.yml/badge.svg)](https://github.com/mar10/nutree/actions/workflows/tests.yml)
 [![Latest Version](https://img.shields.io/pypi/v/nutree.svg)](https://pypi.python.org/pypi/nutree/)
+[![Tests](https://github.com/mar10/nutree/actions/workflows/tests.yml/badge.svg)](https://github.com/mar10/nutree/actions/workflows/tests.yml)
+[![codecov](https://codecov.io/github/mar10/nutree/branch/main/graph/badge.svg?token=9xmAFm8Icl)](https://codecov.io/github/mar10/nutree)
 [![License](https://img.shields.io/pypi/l/nutree.svg)](https://github.com/mar10/nutree/blob/main/LICENSE.txt)
 [![Documentation Status](https://readthedocs.org/projects/nutree/badge/?version=latest)](http://nutree.readthedocs.io/)
-[![codecov](https://codecov.io/github/mar10/nutree/branch/main/graph/badge.svg?token=9xmAFm8Icl)](https://codecov.io/github/mar10/nutree)
 [![Released with: Yabs](https://img.shields.io/badge/released%20with-yabs-yellowgreen)](https://github.com/mar10/yabs)
 [![StackOverflow: nutree](https://img.shields.io/badge/StackOverflow-nutree-blue.svg)](https://stackoverflow.com/questions/tagged/nutree)
 

docs/sphinx/index.rst

@@ -4,8 +4,8 @@
 nutree
 ######
 
-|gha_badge| |nbsp| |pypi_badge| |nbsp| |lic_badge| |nbsp| |rtd_badge| |nbsp|
-|coverage_badge| |nbsp| |so_badge|
+|pypi_badge| |nbsp| |gha_badge| |nbsp| |coverage_badge| |nbsp| |lic_badge| 
+|nbsp| |rtd_badge| |nbsp| |so_badge|
 
 *A Python library for tree data structures with an intuitive, yet powerful, API.*