Update README.md

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@ -7,8 +7,6 @@ The script looks for the next subtitle and if it is ahead by 5 (default) seconds
### Usage
For the script to work it is necessary to have an appropriate 'text' subtitle selected and visible.
If you want to use it with local files it is necessary to either have `--cache=yes` or `--demuxer-readahead-secs=10` options enabled in your config/cli. A value of `demuxer-readahead-secs>=10` is recommended. The same applies to `--cache-secs` option if it has been set.
The script works best in `video-sync=audio` mode (the default in mpv), because it will then be able to minimize frame drops on speed transition from high->normal. Stutter-free playback is the result.
Sensible defaults have been set, but if you want to change the `lookahead` value take care to not set it larger than what the buffers can provide. This applies to embedded subtitles and not external.
@ -23,6 +21,10 @@ Key Bind|Effect
`alt + j`|Toggle sub visibility on/off (non-styled subs)
`alt + '+'`|Increase speedup
`alt + '-'`|Decrease speedup
`alt + '0'`|Increase leadin (time before the next subtitle to return to normal speed)
`alt + '9'`|Decrease leadin
`alt + '8'`|Increase Look ahead (if the next subtitle is closer than this, don't speed up)
`alt + '7'`|Decrease Look ahead
## subselect