chore: Rename master branch to main branch

Author: sorairolake

.github/workflows/CI.yaml

@@ -9,7 +9,7 @@ on:
   push:
     branches:
       - "develop"
-      - "master"
+      - "main"
   schedule:
     - cron: "0 0 * * 0"
 

.github/workflows/REUSE.yaml

@@ -9,7 +9,7 @@ on:
   push:
     branches:
       - "develop"
-      - "master"
+      - "main"
 
 jobs:
   reuse:

CONTRIBUTING.adoc

@@ -24,7 +24,7 @@ Please see the {commit-messages-guide-url}[Commit messages guide] and the
 == Submitting a pull request
 
 . Create a working branch from the `develop` branch. The branch name should be
-  something other than `develop` or `master`.
+  something other than `develop` or `main`.
 . Create your patch. If your change is a feature or a bugfix, please add a test
   case if possible. Note that the change must pass the CI.
 . Please update the copyright information if possible. This project is

RELEASE-CHECKLIST.adoc

@@ -11,12 +11,12 @@
   add any missing changes)
 . Bump up the version (`just bump part`)
 . Update the release date in `link:CITATION.cff[]` to the current date
-. Switch to the `master` branch, and merge the release branch into it (with
+. Switch to the `main` branch, and merge the release branch into it (with
   `--no-ff`)
 . Make a GPG-signed tag (e.g.
   `git tag -s v0.1.0 -m "chore(release): Release version 0.1.0"`)
 . Switch to the `develop` branch, and merge the release branch into it (with
   `--no-ff`)
-. Push the `master` branch, the `develop` branch and the local tags
+. Push the `main` branch, the `develop` branch and the local tags
 . Checkout the latest tag, and publish to {crates-io-url}[crates.io] using
   `cargo publish`