Add spoilers to changelog

[jonasfranz]

The changelogs for releases like 1.2.0-rc1 are pretty big. I propose to use spoilers to make them more human-readable.

Example:

FEATURES

• API: support '/orgs/:org/repos' (#2047)
• Add Gitea Webhook (#1755)
• Display all organization from user settings (#1739)
• Show commit status icon in commits table (#1688)
• Adding #issuecomment to the URL in E-Mail notifications (#1674)
• feat: add download count field and unit testing for attachment. (#1512)
• Add repo mirror sync API endpoint (#1508)
• Add markup package to prepare for org markup format (#1493)
• Repo size in admin panel (#1482)
• LDAP user synchronization (#1478)
• Support for custom html meta (#1423)
• [Notifications Step 6] Per issue/PR watch/unwatch (#1410)
• Allow ENABLE_OPENID_SIGNUP to depend on DISABLE_REGISTRATION (#1369)
• Fix FCGI (over TCP) support (#1368)
• Status-API (#1332)
• Show user OpenID URIs in their profile (#1314)
• Add change-password admin command (#1304)
• feat: Only use issue and wiki on repo. (#1297)
• Rework SSH key management UI to add GPG (#1293)
• Allow push to init a wiki repo (#1279)
• GPG commit validation (#1150)
• Dockerfile for aarch64 (#1128) (#1130)
• Additional OAuth2 providers (#1010)
• Add units to team (#947)
• Batch updates for issues (#926)
• Implement GPG api (#710)
• Login via OpenID-2.0 (#618)

BREAKING

• Rename /forget_password url to /forgot_password (#1219)
• SSH keys management URL changed from /user/settings/ssh to /user/settings/keys (#1293)

[lunny]

That's a syntax of github?

[jonasfranz]

@lunny See dear-github/dear-github#166 (comment)