docs: fix configuration file link

book/src/configuration.md

@@ -3,7 +3,7 @@
 For certain settings we use all the time (e.g. language, build paths, etc.),
 Aura is configurable via `/etc/aura.conf`. If you installed Aura from the AUR,
 this file was generated for you automatically. Otherwise, a full template [is
-available here](https://github.com/fosskers/aura/blob/master/aura/doc/aura.conf)
+available here](https://github.com/fosskers/aura/blob/master/haskell/aura/doc/aura.conf)
 and contains all instructions.
 
 > **💡 Tip:** You can check all configuration options in full detail with `man