Document Get-VideoSubtitles.ps1 in README.md, index.md and SKILL.md, describing subtitle extraction and -List behavior, supported text and Blu-ray PGS formats, unsupported DVD and DVB bitmap tracks, and replacement of same-named output files in the current directory

README.md

@@ -65,6 +65,7 @@ These map directly to the `-g` flag values accepted by both `rife-ncnn-vulkan` a
 | Get-LastFrame.ps1 | Extract a specific frame or last frame to PNG, with an optional filename pattern |
 | Get-VideoAudio.ps1 | Extracts audio in either WAV or MP3 format from a video file |
 | Get-VideoInfo.ps1 | Extract and display video metadata from comment tags |
+| Get-VideoSubtitles.ps1 | Extract the embedded subtitle tracks of a video to SRT, ASS or SUP files in the current directory, or list them with `-List` |
 | Stitch-InBetween.ps1 | Generate interpolated in-between frames between two images using RIFE and encode to video |
 
 **Important**: