Update branch names

Author: brandonwillard

.github/workflows/pypi.yml

@@ -2,10 +2,10 @@ name: PyPI
 on:
   push:
     branches:
-      - master
+      - main
       - auto-release
   pull_request:
-    branches: [master]
+    branches: [main]
   release:
     types: [published]
 

.github/workflows/tests.yml

@@ -3,10 +3,10 @@ name: Tests
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 # Cancels all previous workflow runs for pull requests that have not completed.
 concurrency:

Makefile

@@ -61,7 +61,7 @@ test:  # Test code using pytest.
 	pytest -v tests/ --cov=cons/ --cov-report=xml --html=testing-report.html --self-contained-html
 
 coverage: test
-	diff-cover coverage.xml --compare-branch=master --fail-under=100
+	diff-cover coverage.xml --compare-branch=main --fail-under=100
 
 pypi:
 	${PYTHON} setup.py clean --all; \

README.md

@@ -1,4 +1,4 @@
-[![Build Status](https://travis-ci.org/pythological/python-cons.svg?branch=master)](https://travis-ci.org/pythological/python-cons) [![Coverage Status](https://coveralls.io/repos/github/pythological/python-cons/badge.svg?branch=master)](https://coveralls.io/github/pythological/python-cons?branch=master) [![PyPI](https://img.shields.io/pypi/v/cons)](https://pypi.org/project/cons/)
+[![Build Status](https://travis-ci.org/pythological/python-cons.svg?branch=main)](https://travis-ci.org/pythological/python-cons) [![Coverage Status](https://coveralls.io/repos/github/pythological/python-cons/badge.svg?branch=main)](https://coveralls.io/github/pythological/python-cons?branch=main) [![PyPI](https://img.shields.io/pypi/v/cons)](https://pypi.org/project/cons/)
 
 # Python `cons`