Update CHANGES.

CHANGES.md

@@ -698,15 +698,15 @@ Pursuant to the great namespace flattening:
 * d3.time.scale ↦ [d3.scaleTime](https://github.com/d3/d3-scale#scaleTime)
 * d3.time.scale.utc ↦ [d3.scaleUtc](https://github.com/d3/d3-scale#scaleUtc)
 
-Scales now generate ticks in the same order as the domain: if you have a descending domain, you now get descending ticks. This changes applies to time scales as well, and affects the order of tick elements generated by [axes](#axes-d3-axis). For example:
+Scales now generate ticks in the same order as the domain: if you have a descending domain, you now get descending ticks. This change affects the order of tick elements generated by [axes](#axes-d3-axis). For example:
 
 ```js
 d3.scaleLinear().domain([10, 0]).ticks(5); // [10, 8, 6, 4, 2, 0]
 ```
 
-Non-linear quantitative scales are slightly more accurate. [Log tick formatting](https://github.com/d3/d3-scale#log_tickFormat) now assumes a default *count* of ten, not Infinity, if not specified. Log scales with  domains that span many powers (such as from 1e+3 to 1e+29) now return only one [tick](https://github.com/d3/d3-scale#log_ticks) per power rather than returning *base* ticks per power.
+[Log tick formatting](https://github.com/d3/d3-scale#log_tickFormat) now assumes a default *count* of ten, not Infinity, if not specified. Log scales with  domains that span many powers (such as from 1e+3 to 1e+29) now return only one [tick](https://github.com/d3/d3-scale#log_ticks) per power rather than returning *base* ticks per power. Non-linear quantitative scales are slightly more accurate.
 
-You can now control whether an ordinal scale’s domain is implicitly extended when the ordinal scale is passed a value that is not in its domain. By default, [*ordinal*.unknown](https://github.com/d3/d3-scale#ordinal_unknown) is [d3.scaleImplicit](https://github.com/d3/d3-scale#scaleImplicit), and unknown values will be added to the domain:
+You can now control whether an ordinal scale’s domain is implicitly extended when the scale is passed a value that is not already in its domain. By default, [*ordinal*.unknown](https://github.com/d3/d3-scale#ordinal_unknown) is [d3.scaleImplicit](https://github.com/d3/d3-scale#scaleImplicit), causing unknown values to be added to the domain:
 
 ```js
 var x = d3.scaleOrdinal()