chore: fix typo in libraries.md (#15800)

Fix typo in libraries.md

docs/docs/features/libraries.md

@@ -58,7 +58,7 @@ If your photos are on a network drive, automatic file watching likely won't work
 
 #### Troubleshooting
 
-If you encounter an `ENOSPC` error, you need to increase your file watcher limit. In sysctl, this key is called `fs.inotify.max_user_watched` and has a default value of 8192. Increase this number to a suitable value greater than the number of files you will be watching. Note that Immich has to watch all files in your import paths including any ignored files.
+If you encounter an `ENOSPC` error, you need to increase your file watcher limit. In sysctl, this key is called `fs.inotify.max_user_watches` and has a default value of 8192. Increase this number to a suitable value greater than the number of files you will be watching. Note that Immich has to watch all files in your import paths including any ignored files.
 
 ```
 ERROR [LibraryService] Library watcher for library c69faf55-f96d-4aa0-b83b-2d80cbc27d98 encountered error: Error: ENOSPC: System limit for number of file watchers reached, watch '/media/photo.jpg'