feat: add erlang to sets/section

Author: leavelet

sets/section

@@ -14,6 +14,7 @@ doc
 editors
 electronics
 embedded
+erlang
 fonts
 games
 gnome
@@ -76,6 +77,7 @@ non-free/doc
 non-free/editors
 non-free/electronics
 non-free/embedded
+non-free/erlang
 non-free/fonts
 non-free/games
 non-free/gnome
@@ -138,6 +140,7 @@ contrib/doc
 contrib/editors
 contrib/electronics
 contrib/embedded
+contrib/erlang
 contrib/fonts
 contrib/games
 contrib/gnome