diff --git a/jh20-jue/config.ini b/jh20-jue/config.ini
index 6b5f8de..310d66d 100644
--- a/jh20-jue/config.ini
+++ b/jh20-jue/config.ini
@@ -1,15 +1,24 @@
 [default]
 schedule = https://releasing.c3voc.de/releases/jhjue2020/schedule-jhjue20.xml
+; intro_template.ts was derived from a png which was derived from jhjue-20-intro.svg 
+; ffmpeg -loop 1 -i jh20-jue/jh20-jue-intro.png -ar 48000 -ac 2 -f s16le -i /dev/zero -c:v mpeg2video -pix_fmt:v yuv420p -qscale:v 2 -qmin:v 2 -qmax:v 7 -keyint_min 0 -bf 0 -g 0 -intra:0 -maxrate:0 90M  -c:a mp2 -b:a 384k -t 5  jh20-jue/jh20-jue_intro_template.ts
 template = jh20-jue_intro_template.ts
 alpha = false
 prores = false
 
+; fields for title and speaker names are empty in the template.ts, so we'll render them in via ffmpeg
 [title]
-in = 20
+; inframe for title
+in = 20 
+; outframe  for totle
 out = 225
+; title font
 font = ebisu.ttf
+; title font size
 fontsize = 70
+; title color
 fontcolor = #ffffff
+; title position from upper left corner
 x = 600
 y = 865
 
@@ -22,6 +31,7 @@ fontcolor = #eeeeee
 x = 600
 y = 950
 
+; optional extra text
 [text]
 in = 3
 out = 4
@@ -32,3 +42,6 @@ x = 640
 y = 1000
 text = ''
 
+
+; build intros via
+; ./make-ffmpeg.py jh20-jue/