docs: add seasonpackarr (#212)

docs/3rd-party-tools/seasonpackarr.md

@@ -0,0 +1,11 @@
+---
+id: seasonpackarr
+sidebar_label: seasonpackarr
+title: seasonpackarr
+description: automatic episode into season pack hardlinking.
+keywords: [season,pack,seasonpackarr,hardlink,arr]
+---
+
+seasonpackarr is a companion app for autobrr that automagically hardlinks downloaded episodes into a season folder when a season pack is announced, eliminating the need for re-downloading existing episodes.
+
+For a detailed setup and configuration guide you can follow the instructions available at [https://github.com/nuxencs/seasonpackarr](https://github.com/nuxencs/seasonpackarr/blob/develop/README.md). If you still have issues or questions, feel free to open up an issue on GitHub or join the [TRaSH Discord](https://trash-guides.info/discord) server and ask your questions in the seasonpackarr channel!

sidebars.js

@@ -93,6 +93,7 @@ module.exports = {
         "3rd-party-tools/manage-torrents",
         "3rd-party-tools/redactedhook",
         "3rd-party-tools/upgraderr",
+        "3rd-party-tools/seasonpackarr",
         "3rd-party-tools/sizechecker"
       ],
     },