Add bin using crate english-to-cron.

src/bin/using-crate-english-to-cron.rs

@@ -0,0 +1,15 @@
+fn main() {
+    let texts = vec![
+        "every 15 seconds",
+        "every minute",
+        "every day at 4:00 pm",
+        "at 10:00 am",
+        "Run at midnight on the 1st and 15th of the month",
+        "on Sunday at 12:00",
+    ];
+
+    for text in texts {
+        let res = english_to_cron::str_cron_syntax(text);
+        println!("{text}: {res:#?}");
+    }
+}