Update contributors.txt

You guys asked to add ourselves, even if it's only a little contribution on podcastindex.social so here I am :) keep up the good work!
2020-11-18 01:06:48 +01:00 · 2020-11-18 01:06:48 +01:00 · ad0c01fb92
commit ad0c01fb92
--- a/contributors.txt
+++ b/contributors.txt
@ -18,5 +18,5 @@ Mitch Downey
@Muppet1856
 Douglas Kastle
 Andy Lehman
-
+Daniel Siebiesiuk
 ... add your name as you contribute!