rename master -> main

Author: samuelcolvin

.github/workflows/ci.yml

@@ -3,7 +3,7 @@ name: CI
 on:
   push:
     branches:
-      - master
+      - main
     tags:
       - '**'
   pull_request: {}

README.md

@@ -1,10 +1,10 @@
 # python devtools
 
-[![CI](https://github.com/samuelcolvin/python-devtools/workflows/CI/badge.svg?event=push)](https://github.com/samuelcolvin/python-devtools/actions?query=event%3Apush+branch%3Amaster+workflow%3ACI)
-[![Coverage](https://codecov.io/gh/samuelcolvin/python-devtools/branch/master/graph/badge.svg)](https://codecov.io/gh/samuelcolvin/python-devtools)
+[![CI](https://github.com/samuelcolvin/python-devtools/workflows/CI/badge.svg?event=push)](https://github.com/samuelcolvin/python-devtools/actions?query=event%3Apush+branch%3Amain+workflow%3ACI)
+[![Coverage](https://codecov.io/gh/samuelcolvin/python-devtools/branch/main/graph/badge.svg)](https://codecov.io/gh/samuelcolvin/python-devtools)
 [![pypi](https://img.shields.io/pypi/v/devtools.svg)](https://pypi.python.org/pypi/devtools)
 [![versions](https://img.shields.io/pypi/pyversions/devtools.svg)](https://github.com/samuelcolvin/python-devtools)
-[![license](https://img.shields.io/github/license/samuelcolvin/python-devtools.svg)](https://github.com/samuelcolvin/python-devtools/blob/master/LICENSE)
+[![license](https://img.shields.io/github/license/samuelcolvin/python-devtools.svg)](https://github.com/samuelcolvin/python-devtools/blob/main/LICENSE)
 
 **Python's missing debug print command and other development tools.**
 
@@ -57,7 +57,7 @@ debug(data)
 
 outputs:
 
-![python-devtools demo](https://raw.githubusercontent.com/samuelcolvin/python-devtools/master/demo.py.png)
+![python-devtools demo](https://raw.githubusercontent.com/samuelcolvin/python-devtools/main/demo.py.png)
 
 ## Usage without Import
 

docs/index.md

@@ -1,10 +1,10 @@
 # Python devtools
 
-[![CI](https://github.com/samuelcolvin/python-devtools/workflows/CI/badge.svg?event=push)](https://github.com/samuelcolvin/python-devtools/actions?query=event%3Apush+branch%3Amaster+workflow%3ACI)
-[![Coverage](https://codecov.io/gh/samuelcolvin/python-devtools/branch/master/graph/badge.svg)](https://codecov.io/gh/samuelcolvin/python-devtools)
+[![CI](https://github.com/samuelcolvin/python-devtools/workflows/CI/badge.svg?event=push)](https://github.com/samuelcolvin/python-devtools/actions?query=event%3Apush+branch%3Amain+workflow%3ACI)
+[![Coverage](https://codecov.io/gh/samuelcolvin/python-devtools/branch/main/graph/badge.svg)](https://codecov.io/gh/samuelcolvin/python-devtools)
 [![pypi](https://img.shields.io/pypi/v/devtools.svg)](https://pypi.python.org/pypi/devtools)
 [![versions](https://img.shields.io/pypi/pyversions/devtools.svg)](https://github.com/samuelcolvin/python-devtools)
-[![license](https://img.shields.io/github/license/samuelcolvin/python-devtools.svg)](https://github.com/samuelcolvin/python-devtools/blob/master/LICENSE)
+[![license](https://img.shields.io/github/license/samuelcolvin/python-devtools.svg)](https://github.com/samuelcolvin/python-devtools/blob/main/LICENSE)
 
 {{ version }}
 

docs/usage.md

@@ -72,7 +72,7 @@ in `debug()`, but it can also be used directly:
 {{ example_html(examples/prettier.py) }}
 
 For more details on prettier printing, see
-[`prettier.py`](https://github.com/samuelcolvin/python-devtools/blob/master/devtools/prettier.py).
+[`prettier.py`](https://github.com/samuelcolvin/python-devtools/blob/main/devtools/prettier.py).
 
 ## ANSI terminal colours
 
@@ -81,7 +81,7 @@ For more details on prettier printing, see
 ```
 
 For more details on ansi colours, see
-[ansi.py](https://github.com/samuelcolvin/python-devtools/blob/master/devtools/ansi.py).
+[ansi.py](https://github.com/samuelcolvin/python-devtools/blob/main/devtools/ansi.py).
 
 ## Usage without import