Corrected the --help output in the README.md file.

README.md

@@ -32,17 +32,23 @@ say2file [options] [optional text to convert to audio]
 Options: --file or -f with filename (input text file)
          --split or -s (split the input text file into multiple output files)
          --out or -o with rootname (produces rootname.type or rootname-n.type)
-         --provider or -p with provider ("ibm", "watson", "eleven" or "11")
+         --provider or -p with provider(ibm, watson, eleven or 11. default is eleven)
          --list or -l (to list available voices)
-         --voice or -w with the name (IBM) or the voice ID (ElevenLabs)
          --key or -k with the API key to use (if not in .env)
-         --url or -k with the service URL to use (if not in .env)
-
-Additional options when using the IBM Watson provider:
-         --type or -t with type (wav, mp3, mpeg, flac, ogg)
-         --rate or -r with rate (sample rate, default is 44100)
-         --version or -v (show version)
-         --help or -h or -? (this help)
+         --version or -v (show version))
+         --help or -h or -? (this help))
+
+Addition options when using the ElevenLabs provider:
+         --voice or -w (who), choices: default or voice-ID)
+         --type or -t with type, choices: mp3 or wav, mp3 is always 44100
+         --rate or -r with rate, mp3 choices: 64, 96, 128, or 192 (default)
+                                 wav choices: 16000, 22050, 24000, or 44100 (default)
+
+Addition options when using the IBM Watson provider:
+         --url or -u with the service URL to use (if not in .env)
+         --voice or -w (who), choices: michael olivia kevin lisa allison henry james kate charlotte craig madison
+         --type or -t with type, choices: wav, mp3, mpeg, flac, ogg)
+         --rate or -r with rate, sample rate: default is 44100)
 
 For IBM, the voice can can be: michael, olivia, kevin, lisa, allison, henry, james, kate, charlotte, craig, or madison.