Fix additional package sorted alphabetically.

README.md

@@ -794,6 +794,7 @@ See [go-hardware](https://github.com/rakyll/go-hardware) for a comprehensive lis
 * [go-debug](https://github.com/tj/go-debug) - Conditional debug logging for Golang libraries & applications
 * [go-dry](https://github.com/ungerik/go-dry) - DRY (don't repeat yourself) package for Go.
 * [go-rate](https://github.com/beefsack/go-rate) -  A timed rate limiter for Go
+* [go-sitemap-generator](https://github.com/ikeikeikeike/go-sitemap-generator) - XML Sitemap generator written in Go.
 * [go-trigger](https://github.com/sadlil/go-trigger) - Go-lang global event triggerer, Register Events with a id and trigger the event from anywhere from your project.
 * [go-underscore](https://github.com/tobyhede/go-underscore) - A useful collection of helpfully functional Go collection utilities.
 * [goback](https://github.com/carlescere/goback) - Go simple exponential backoff package.
@@ -828,7 +829,6 @@ See [go-hardware](https://github.com/rakyll/go-hardware) for a comprehensive lis
 * [request](https://github.com/mozillazg/request) - Go HTTP Requests for Humans™.
 * [robustly](https://github.com/VividCortex/robustly) - Runs functions resiliently, catching and restarting panics
 * [scheduler](https://github.com/carlescere/scheduler) - Cronjobs scheduling made easy.
-* [go-sitemap-generator](https://github.com/ikeikeikeike/go-sitemap-generator) - XML Sitemap generator written in Go.
 * [sling](https://github.com/dghubble/sling) - Go HTTP requests builder for API clients.
 * [spinner](https://github.com/briandowns/spinner) - Go package to easily provide a terminal spinner with options.
 * [sqlx](https://github.com/jmoiron/sqlx) - provides a set of extensions on top of the excellent built-in database/sql package