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@@ -5430,9 +5430,9 @@ optional. The individual parts have the following meaning:
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The =est+= summary type requires further explanation. It is used for
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combining estimates, expressed as low-high ranges. For example,
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instead of estimating a particular task will take 5 days, you might
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-estimate it as 5-6 days if you're fairly confident you know how much
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-work is required, or 1-10 days if you do not really know what needs to
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-be done. Both ranges average at 5.5 days, but the first represents
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+estimate it as 5--6 days if you're fairly confident you know how much
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+work is required, or 1--10 days if you do not really know what needs
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+to be done. Both ranges average at 5.5 days, but the first represents
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a more predictable delivery.
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When combining a set of such estimates, simply adding the lows and
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@@ -5442,7 +5442,7 @@ estimate from the sum. For example, suppose you had ten tasks, each
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of which was estimated at 0.5 to 2 days of work. Straight addition
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produces an estimate of 5 to 20 days, representing what to expect if
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everything goes either extremely well or extremely poorly. In
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-contrast, =est+= estimates the full job more realistically, at 10-15
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+contrast, =est+= estimates the full job more realistically, at 10--15
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days.
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Here is an example for a complete columns definition, along with
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Nicolas Goaziou