I've added the .srt files just like the blog says (vod-subtitles-webvtt-srt-ttml-support) and the playlist.m3u8 file is similar to the example but when using VLC subtitles not showing up. What can I do?

Hi,
- you can check you have subtitles. just run curl http://yourhost/stream/playlist.m3u8 and try to find SUBTITLES keywork there
If you cannot you have problem with subtitles generation
- if you see subtitles in playlist find subtitles in vlc. I don't recall exactly but probably you need to enable them explicitly.

In additional you can check subtitles using http://player.wmspanel.com/

thanks for the reply Alex.
subtitle option is disabled in VLC, and playlist file does show subtitles

-rw-r--r--. 1 nimble nimble 1044241306 Jun 18 2016 wedding.mp4
-rw-rw-r--. 1 nimble nimble 125921 Jun 18 2016 wedding.srt

$ curl "http ://192.168.0.17:32768/vod/wedding.mp4/playlist.m3u8"
#EXTM3U
#EXT-X-VERSION:3
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="sub",NAME="English",URI="subtitle.m3u8?nimblesessionid=12",LANGUAGE="eng"
#EXT-X-STREAM-INF:BANDWIDTH=4524435,CODECS="avc1.100.40,mp4a.40.2",RESOLUTION=1280x536,SUBTITLES="sub"
chunk.m3u8?nimblesessionid=12

:( any ideas anyone

Maybe you need to add subtitle to video permanently then you can see the subtitles on videos: http://www.videoconverterfactory.com/tips/add-subtitles.html
https://ezgif.com/video-subtitles