made announcement config clearer

apps/announcement/etc/announcement.conf

@@ -1,10 +1,12 @@
-#CFGOPTION_SEMS_ANNOUNCEPATH
+# File to be played:
+#  1) [announce_path]/[Domain]/[User].wav
+#  2) [announce_path]/[User].wav
+#  3) [announce_path]/[default_announce]
+# first found is played
+
 announce_path=/usr/local/lib/sems/audio/
-#ENDCFGOPTION
 
-#CFGOPTION_SEMS_ANNOUNCEMENT
 default_announce=default_en.wav
-#ENDCFGOPTION
 
 # optional parameter: loop
 #  set to "true" to make the announcement loop

doc/Readme.announcement.txt

@@ -8,11 +8,12 @@ Description:
 The annoucement server plays a wav file to the caller.
 It searches for files to play following these rules:
 
- 1) [AnnouncePath]/[Domain]/[User].wav
- 2) [AnnouncePath]/[User].wav
+ 1) [announce_path]/[Domain]/[User].wav
+ 2) [announce_path]/[User].wav
+ 3) [announce_path]/[default_announce]
 
 That's it.
 
 It can also loop the file if configured to do so. 
 
-Now that really is it.
+Now that really is it.