Parse plain English date/time range strings

Changes for v1.0.1 - 2024-04-19T16:50:33Z

• Update README (Andrew Hewus Fresh)
• Pull request #2: SM-4807 (James Hammer)
• SM-4807 Add POD for new features (James Hammer)
• SM-4807 Correct thirteenths to thirteenth typo (James Hammer)