Broken markup in section 38.6

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https://beej.us/guide/bgc/html/split-wide/date-and-time-functionality.html

https://github.com/beejjorgensen/bgc/blob/3eb1f01553c9f6bb04de0b24ace1727d6f508a82/src/bgc_part_3300_time.md?plain=1#L464-L466