fix: update references to main branch

.github/workflows/ci.yml

@@ -2,7 +2,7 @@
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
 
 name: CI

CHANGELOG.md

@@ -137,7 +137,7 @@ codebase.
 
  - Initial version
 
-[MIGRATING.md]: https://github.com/rustedpy/result/blob/master/MIGRATING.md
+[MIGRATING.md]: https://github.com/rustedpy/result/blob/main/MIGRATING.md
 [Unreleased]: https://github.com/rustedpy/result/compare/v0.16.0...HEAD
 [0.16.0]: https://github.com/rustedpy/result/compare/v0.15.0...v0.16.0
 [0.15.0]: https://github.com/rustedpy/result/compare/v0.14.0...v0.15.0

Makefile

@@ -27,5 +27,5 @@ test: phony
 docs: phony
 	lazydocs \
 		--overview-file README.md \
-		--src-base-url https://github.com/rustedpy/result/blob/master/ \
+		--src-base-url https://github.com/rustedpy/result/blob/main/ \
 		./src/result

README.md

@@ -1,7 +1,7 @@
 # Result
 
-[![GitHub Workflow Status (branch)](https://img.shields.io/github/actions/workflow/status/rustedpy/result/ci.yml?branch=master)](https://github.com/rustedpy/result/actions/workflows/ci.yml?query=branch%3Amaster)
-[![Coverage](https://codecov.io/gh/rustedpy/result/branch/master/graph/badge.svg)](https://codecov.io/gh/rustedpy/result)
+[![GitHub Workflow Status (branch)](https://img.shields.io/github/actions/workflow/status/rustedpy/result/ci.yml?branch=main)](https://github.com/rustedpy/result/actions/workflows/ci.yml?query=branch%3Amaster)
+[![Coverage](https://codecov.io/gh/rustedpy/result/branch/main/graph/badge.svg)](https://codecov.io/gh/rustedpy/result)
 
 A simple Result type for Python 3 [inspired by
 Rust](https://doc.rust-lang.org/std/result/), fully type annotated.
@@ -14,7 +14,7 @@ Latest release:
 $ pip install result
 ```
 
-Latest GitHub `master` branch version:
+Latest GitHub `main` branch version:
 
 ``` sh
 $ pip install git+https://github.com/rustedpy/result