Update readme

Author: timhagel

README.md

@@ -10,6 +10,26 @@ Assuming you have docker installed and setup
     cd melotts-api-server
     docker build -t melotts-api-server .
 
+### Languages and Speakers
+
+#### Language
+
+- EN - English
+- ES - Spainish
+- FR - French
+- ZH - Chinese
+- JP - Japanese
+- KR - Korean
+
+#### Speaker IDs
+
+- EN-US - American english accent
+- EN-BR - British english accent
+- EN_INDIA - Indian english accent
+- EN-AU - Australian english accent
+- EN-Default - Default english accent
+- **Notice!** Currently only english accents are working, and other accents are returning an error. This dose not mean that other language do not work!
+
 ### Run (English)
 
     docker run -p 8888:8080 -e DEFAULT_SPEED=1 -e DEFAULT_LANGUAGE=EN -e DEFAULT_SPEAKER_ID=EN-US  melotts-api-server
@@ -35,6 +55,8 @@ Response : .wav
         "speaker_id": "speaker_id"
     }
 
+Response : .wav
+
 ## Acknowledgement
 
 This just a API server for the awesome work of [MeloTTS](https://github.com/myshell-ai/MeloTTS) from [MyShell](https://github.com/myshell-ai)