Update README.md for Logger Example

- Changed Command Name to 'logger'.
- Added a Command `examples` field.

README.md

@@ -30,8 +30,9 @@ logger --log-level info
 // ...
 pub const CommandT = cova.Command.Custom(.{...});
 pub const setup_cmd = CommandT{
-    .name = "log_enum",
+    .name = "logger",
     .description = "A small demo of using the Log Level Enum as an Option.",
+    .examples = &.{ "logger --log-level info" },
     .opts = &.{
         .{
             .name = "log_level",