v1.18.0

Features:

• Publish messages as JSON (#133, thanks @cmeis for reporting, thanks to @Joeharrison94 and @Fallenbagel for testing)

Bug fixes:

• rpm: do not overwrite server.yaml on package upgrade (#166, thanks @waclaw66 for reporting and testing)
• Typo in ntfy.sh/announcements topic (#170, thanks to @sandebert)
• Readme image URL fixes (#156, thanks to @ChaseCares)

Deprecations:

• Removed the ability to run server as ntfy serve as per deprecation