added Bulgarian, Hungarian, Greek and Slovak support

Author: MK2112

README.md

@@ -52,7 +52,7 @@ You can structure a command in three fundamental ways:
 | Command Argument             | Meaning |
 | ---------------------------- | ------- |
 | `-h` or </br>`--help`        | List all available parameters, their description and default values, then exit. |
-| `-l` or </br>`--language`    | Set the CLI language, currently supported: `zh_CN` (Mandarin, Simplified), `ja_JP` (Japanese), `fr_FR` (French), `es_ES` (Spanish), `it_IT` (Italian), `de_DE` (German), `pt_BR` (Portuguese, Brazilian), `uk_UA` (Ukrainian), `ko_KR` (Korean), `en_US` (American English), `pl_PL` (Polish), `hi_IN` (Hindi), `ru_RU` (Russian), `ar_SA` (Arabic), `id_ID` (Indonesian), `tr_TR` (Turkish), `vi_VN` (Vietnamese), `th_TH` (Thai), `nl_NL` (Dutch), `sv_SE` (Swedish), `da_DK` (Danish), `fi_FI` (Finnish), `no_NO` (Norwegian), `is_IS` (Icelandic), `he_IL` (Hebrew), `cs_CZ` (Czech), `ro_RO` (Romanian), `ms_MY` (Malay). **Default is system locale if supported, fallback is `en_US`.**|
+| `-l` or </br>`--language`    | Set the CLI language, currently supported: `zh_CN` (Mandarin, Simplified), `ja_JP` (Japanese), `fr_FR` (French), `es_ES` (Spanish), `it_IT` (Italian), `de_DE` (German), `pt_BR` (Portuguese, Brazilian), `uk_UA` (Ukrainian), `ko_KR` (Korean), `en_US` (American English), `pl_PL` (Polish), `hi_IN` (Hindi), `ru_RU` (Russian), `ar_SA` (Arabic), `id_ID` (Indonesian), `tr_TR` (Turkish), `vi_VN` (Vietnamese), `th_TH` (Thai), `nl_NL` (Dutch), `sv_SE` (Swedish), `da_DK` (Danish), `fi_FI` (Finnish), `no_NO` (Norwegian), `is_IS` (Icelandic), `he_IL` (Hebrew), `cs_CZ` (Czech), `ro_RO` (Romanian), `ms_MY` (Malay), `bg_BG` (Bulgarian), `hu_HU` (Hungarian), `el_GR` (Greek), `sk_SK` (Slovak). **Default is system locale if supported, fallback is `en_US`.**|
 | `-i` or </br>`--input`       | Path to file itself or directory containing files to be converted. If not provided, the directory from where the script is called will be used. |
 | `-f` or </br>`--format`      | Desired output file format, either `mp2`, `mp3`, `flac`, `wav`, `aac`, `aiff`, `ogg`, `oga`, `m4a`, `ac3`, `dts`, `weba`, `wma`, `mka`, `wv`, `caf`, `tta`, `m4b`, `eac3`, `spx`, `au`, `opus`, `m3u8`, `w64`, `mlp`, `adts`, `sbc`, `thd`, `jpeg`, `png`, `gif`, `bmp`, `pdf`, `docx`, `pptx`, `srt`, `webp`, `tiff`, `tga`, `eps`, `ps`, `ico`, `eps`, `jpeg2000`, `im`, `pcx`, `ppm`, `mp4`, `webm`, `mov`, `mkv`, `avi`, `wmv`, `flv`, `m2ts`, `3gp`, `3g2`, `mjpeg`, `asf`, `vob`, `ts`, `raw`, `mpg`, `mxf`, `drc`, `swf`, `f4v`, `m4v`, `mts`, `m2v`, `yuv`, movie codecs like `h263p`, `h264`, `h265`, `xvid`, `mpeg1`, `mpeg2`, `mpeg4`, `av1`, `avc`, `theora`, `vp8`, `vp9`, `hevc`, `prores`, `huffyuv`, `ffv1`, `ffvhuff`, `v210`, `v410`, `v308`, `v408`, `zlib`, `qtrle`, `snow`, `svq1`, `utvideo`, `cinepak`, `msmpeg4`, `h264_nvenc`, `vpx`, `h264_rgb`, `mpeg2video`, `prores_ks`, `vc2`, `flv1`, or protocols like `hls` and `dash` |
 | `-o` or </br>`--output`      | Directory to save converted files into. Writing to the input file path, if none provided. |