[nolist] Add update checklist

update.md

@@ -0,0 +1,16 @@
+# Update checklist
+
+This is for me when releasing updates, because otherwise I forget things
+
+1. Update version in build.gradle.kts & commit
+2. Create tag for update (e.g. 2.6.0)
+3. Push tag & ver bump commit (ensure to select checkbox to push tag)
+4. Merge dev -> master
+5. Create release (draft release notes in release)
+    * Use github compare for reference: https://github.com/ajgeiss0702/ajQueue/compare/2.5.0...2.6.0
+6. Double-check release notes
+7. Release ajQueuePlus on Spigot & Polymart (copy-paste release notes from github release)
+8. Release ajQueue (free) on
+    * Modrinth
+    * Hangar
+    * Polymart