Update README.md

README.md

@@ -2,3 +2,18 @@
 This is a program which allows you to type or pipe through stdin, into a [Mimic3 API](https://github.com/MycroftAI/mimic3) instance.
 I wrote it mostly for use with a [Linux TTS Plugin](https://github.com/Minizbot2012/LinuxTTSPlugin)
 as Mimic3 is a nice TTS software.
+
+## Usage
+
+```
+Usage: mimic3-keyboard [OPTIONS]
+
+Options:
+      --host <HOST>    [default: http://tts.local:59125]
+  -v, --voice <VOICE>  [default: en_US/vctk_low#p236]
+  -s, --ssml           
+  -r, --rate <LENGTH>  [default: 1.2]
+  -n, --noise <NOISE>  [default: 0.33]
+  -h, --help           Print help information
+  -V, --version        Print version information
+```