Add a comment example in the filter file example

Comments are supported in filter file, although the syntax of the filter file is not very clear. I had to look up in the source code (https://github.com/tinyproxy/tinyproxy/blob/master/src/filter.c#L82-L99) to convince myself. I suggest adding a comment example in the filter file entries, to make it clear for everyone.
2020-05-26 11:47:12 +02:00 · 2020-05-26 11:47:12 +02:00 · 8c94b3b211
commit 8c94b3b211
parent d98aabf47f
1 changed files with 2 additions and 1 deletions
--- a/docs/filter-howto.txt
+++ b/docs/filter-howto.txt
@ -34,6 +34,7 @@ start blocking some sites.

 Example "filter" file entries:

+# This is a comment
 bannerads.zwire.com
 ad.doubleclick.net
 ads.fortunecity.com