Merge pull request #5 from coolusaHD/main

Added 'id' to README.md

Author: todd-elvers

README.md

@@ -75,6 +75,7 @@ Prop                  | Type
 `size`| number (defaults to `px`) or a string containing a number+unit (e.g `"10px"`, `"2em"`, `"4.5rem"`, `"100%"`, etc). These units may also have a space between them (e.g. `"10 px"`, `"2 em"`, etc). |`85px`|No
 `speed`| number                                                                                                                                                                                             |`1.3`|No
 `className`| string                                                                                                                                                                                             |`''`|No|
+`id`| string                                                                                                                                                                                             |`''`|No|
 
 > **Note**, this is _not_ a dark mode theme implementation; it's just a button! You'll need to mix this with a management solution such as [use-dark-mode](https://github.com/donavon/use-dark-mode).