--- a/video.rst	Wed Aug 24 02:05:14 2016 +0300
+++ b/video.rst	Wed Aug 24 10:56:33 2016 +0300
@@ -60,7 +60,7 @@
 ================================
 ::
 
-  $ ffmpeg -i video.avi -vf subtitles=subtitle .srt out.avi
+  $ ffmpeg -i in.avi -vf subtitles=subtitle.srt out.avi
 
 https://trac.ffmpeg.org/wiki/HowToBurnSubtitlesIntoVideo