steam: added steam and proton quick fix

wiki/picard.md

@@ -25,6 +25,23 @@ $num(%tracknumber%,$if($gt($len(%totaltracks%),2),$len(%totaltracks%),2))._
 %title%), ,_)
 ```
 
+Another Script is mainly used for audiobooks, where the title is not part of
+the filename to avoid confusion.
+The files are renamed with the scheme
+`[<discnumber>.]<tracknumber>._<artist>_-_<album>_<tracknumber>`
+all in lower case.
+Both discnumber and tracknumber are handled in the same way as in the previous
+script.
+
+```
+$replace($lower(
+$if($gt(%totaldiscs%,1),$num(%discnumber%,$len(%totaldiscs%)).,)
+$num(%tracknumber%,$if($gt($len(%totaltracks%),2),$len(%totaltracks%),2))._
+%artist%_-_
+%album%), ,_)_
+$num(%tracknumber%,$if($gt($len(%totaltracks%),2),$len(%totaltracks%),2))
+```
+
 ## Tagging
 
 The following explains the most general tags in short.

wiki/steam.md

@@ -0,0 +1,26 @@
+# Steam
+
+[Steam](https://store.steampowered.com/) is a software for digital game
+destribution.
+
+## Proton
+
+### Errors with the Wine prefix of a specific game
+
+The last ressort for fixing problems that are related to the wine prefix of a
+game is to delete the Wine prefix.
+For this the id of the steam game first has to be known.
+This is done by navigating to the steam website or the community page of the
+specific game.
+The URLs will have one of the following forms where the game id can be read:
+
+```
+http://steamcommunity.com/app/<game id>/
+http://store.steampowered.com/app/<game id>/
+```
+
+After that navigate to the place your steam games are stored.
+You can remove `<steam location>/steamapps/compatdata/<game id>` to reset the
+Wine prefix completely.
+It is recommended to keep a backup of the folder containing the old Wine prefix
+as it stores game saves and other important data, that can be useful.