minor `README.md` change.

Dependencies

• [2] 6MBUKAG6 remove unneeded functions and comments. update readme.
• [3] NQ22FUSW add more options to `main.js`. update `README.md`.
• [4] 2BKHJI2S init
• [5] CJBGAILA add optional `--target` parameter for `main.js`. update `README.md`.

Change contents

• replacement in README.md at line 15
  [2.3446]→[2.3446:3487](∅→∅)
  − * Execute the actions in the schedule.
  [2.3446]

  [2.3487]
  + * Execute the jobs in the schedule.