feat: add github changelog generator

.github/release.yml

@@ -0,0 +1,33 @@
+# https://docs.github.com/en/repositories/releasing-projects-on-github/automatically-generated-release-notes
+changelog:
+  exclude:
+    authors:
+      - dependabot
+      - dependabot[bot]
+      - nextcloud-bot
+      - nextcloud-command
+    labels:
+      - automated
+      - dependencies
+      - duplicate
+      - invalid
+      - l10n
+      - question
+      - wontfix
+
+  categories:
+    - title: 🔐 Security
+      labels:
+        - security
+    - title: 💥 Breaking Changes
+      labels:
+        - breaking
+    - title: 🚀 Enhancements
+      labels:
+        - enhancements
+    - title: 🐛 Fixed bugs
+      labels:
+        - bug
+    - title: Other Changes
+      labels:
+        - "*"

README.md

@@ -143,17 +143,20 @@ index 0e3a6a705d..416b8b0fb9 100644
 
 ## Releasing a new version
 
-- Pull the latest changes from `master` or `stableX`;
-- Checkout a new branch with the tag name (e.g `v4.0.1`): `git checkout -b v<version>`;
-- Run `npm version patch --no-git-tag-version` (`npm version minor --no-git-tag-version` if minor). This will return a new version name, make sure it matches what you expect;
-- Commit, push and create PR;
-- Add the change log content from the 'Changelog' action on GitHub to `CHANGELOG.md`;
-- Commit and push;
-- Get your PR reviewed and merged;
+- Pull the latest changes from `master` or `stableX`
+- Checkout a new branch with the tag name (e.g `v4.0.1`): `git checkout -b v<version>`
+- Run `npm version patch --no-git-tag-version` (`npm version minor --no-git-tag-version` if minor).
+  This will return a new version name, make sure it matches what you expect
+- Generate the changelog content from the [release](https://github.com/nextcloud-libraries/nextcloud-vue/releases) page.
+  Create a draft release, select the previous tag, click `generate` then paste the content to the `CHANGELOG.md` file
+  1. use the the version as tag AND title (e.g `v4.0.1`)
+  2. add the changelog content as description (https://github.com/nextcloud-libraries/nextcloud-vue/releases)
+- Commit, push and create PR
+- Get your PR reviewed and merged
 - Create a milestone with the follow-up version at https://github.com/nextcloud-libraries/nextcloud-vue/milestones
 - Move all open tickets and PRs to the follow-up
 - Close the milestone of the version you release
-- Create a release on GitHub with the version as tag (e.g `v4.0.1`) and add the changelog content as description (https://github.com/nextcloud-libraries/nextcloud-vue/releases);
+- Publish the previously drafted release on GitHub
   ![image](https://user-images.githubusercontent.com/14975046/124442568-2a952500-dd7d-11eb-82a2-402f9170231a.png)
 
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