Rename master branch to main

Author: pyrech

.github/workflows/ci.yml

@@ -2,7 +2,7 @@ name: CI
 
 on:
     push:
-        branches: [ master ]
+        branches: [ main ]
     pull_request:
     schedule:
         -   cron: '0 0 * * *'

CONTRIBUTING.md

@@ -73,11 +73,11 @@ git remote add upstream https://github.com/jolicode/slack-php-api.git
 Then get the upstream changes:
 
 ```shell
-git checkout master
-git pull --rebase origin master
-git pull --rebase upstream master
+git checkout main
+git pull --rebase origin main
+git pull --rebase upstream main
 git checkout <your-branch>
-git rebase master
+git rebase main
 ```
 
 Finally, publish your changes:

VERSIONING.md

@@ -17,6 +17,6 @@ The versioning is inspired by [Semantic Versioning](http://semver.org/):
 The branching is inspired by [@jbenet](https://github.com/jbenet)
 [simple git branching model](https://gist.github.com/jbenet/ee6c9ac48068889b0912):
 
-> 1. `master` must always be deployable.
+> 1. `main` must always be deployable.
 > 2. **all changes** are made through feature branches (pull-request + merge)
-> 3. rebase to avoid/resolve conflicts; merge in to `master`
+> 3. rebase to avoid/resolve conflicts; merge in to `main`

doc/updating-sdk.md

@@ -16,9 +16,9 @@ In order to download the latest API specification and apply the patches, you may
 
 This command sequentially runs the following operations:
 
-1. Downloads and saves the current [official Slack OpenAPI specification file](https://api.slack.com/specs/openapi/v2/slack_web.json) in [resources/slack-openapi.json](https://github.com/jolicode/slack-php-api/blob/master/resources/slack-openapi.json)
-2. Recursively sorts the JSON keys and saves this intermediate version in [resources/slack-openapi-sorted.json](https://github.com/jolicode/slack-php-api/blob/master/resources/slack-openapi-sorted.json)
-3. Applies [our patches](https://github.com/jolicode/slack-php-api/blob/master/resources/slack-openapi-sorted.patch) and stores the resulting specification file in [resources/slack-openapi-patched.json](https://github.com/jolicode/slack-php-api/blob/master/resources/slack-openapi-patched.json)
+1. Downloads and saves the current [official Slack OpenAPI specification file](https://api.slack.com/specs/openapi/v2/slack_web.json) in [resources/slack-openapi.json](https://github.com/jolicode/slack-php-api/blob/main/resources/slack-openapi.json)
+2. Recursively sorts the JSON keys and saves this intermediate version in [resources/slack-openapi-sorted.json](https://github.com/jolicode/slack-php-api/blob/main/resources/slack-openapi-sorted.json)
+3. Applies [our patches](https://github.com/jolicode/slack-php-api/blob/main/resources/slack-openapi-sorted.patch) and stores the resulting specification file in [resources/slack-openapi-patched.json](https://github.com/jolicode/slack-php-api/blob/main/resources/slack-openapi-patched.json)
 
 You can now build a new SDK using this patched specification.