Rewordings and clarifications

[thibautjombart]

From Adam:

• wasn’t totally clear at first glance what “Date of admission: / Number of admissions on that date:” parameters are controlling
• is it supposed to be that someone in a hospital puts in their number of admissions on that day? doubling time of what? admissions?
• update “normal bed utilisation” to something clearer, e.g. “Non-critical care bed occupancy”

[thibautjombart]

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