Rename master to main

.github/workflows/test.yml

@@ -1,7 +1,7 @@
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
 
 name: Unit Testing

README.rst

@@ -5,10 +5,10 @@ kinto-wizard
 
 .. |pypi| image:: https://img.shields.io/pypi/v/kinto-wizard.svg
     :target: https://pypi.python.org/pypi/kinto-wizard
-.. |ci| image::  https://img.shields.io/github/actions/workflow/status/Kinto/kinto-wizard/test.yml?branch=master
+.. |ci| image::  https://img.shields.io/github/actions/workflow/status/Kinto/kinto-wizard/test.yml?branch=main
     :target: https://github.com/Kinto/kinto-wizard/actions
-.. |coverage| image:: https://coveralls.io/repos/github/Kinto/kinto-wizard/badge.svg?branch=master
-    :target: https://coveralls.io/github/Kinto/kinto-wizard?branch=master
+.. |coverage| image:: https://coveralls.io/repos/github/Kinto/kinto-wizard/badge.svg?branch=main
+    :target: https://coveralls.io/github/Kinto/kinto-wizard?branch=main
 
 kinto-wizard is a tool that lets you setup an entire Kinto server from
 a Yaml file, or inspect an existing server and output a Yaml file.