Update CHANGELOG

Author: mbostock

CHANGELOG.md

@@ -4,9 +4,9 @@
 
 *Not yet released. These are forthcoming changes in the main branch.*
 
-Plot now supports mark initializers via the **initializer** option. Initializers can transform data, channels, and indexes. Unlike data transforms which operate in abstract data space, initializers can operate in screen space such as pixel coordinates and colors. For example, initializers can modify a marks’ positions to avoid occlusion. The new hexbin and dodge transforms are implemented as mark initializers.
+Plot now supports [mark initializers](./README.md#initializers) via the **initializer** option. Initializers can transform data, channels, and indexes. Unlike [data transforms](./README.md#transforms) which operate in abstract data space, initializers can operate in screen space such as pixel coordinates and colors. For example, initializers can modify a marks’ positions to avoid occlusion. The new hexbin and dodge transforms are implemented as mark initializers.
 
-The new hexbin transform functions similarly to the bin transform, except it aggregates both *x* and *y* into hexagonal bins before reducing. The size of the hexagons can be specified with the **binWidth** option, which controls the width of the (pointy-topped) hexagons.
+The new [hexbin transform](./README.md#hexbin) functions similarly to the bin transform, except it aggregates both *x* and *y* into hexagonal bins before reducing. The size of the hexagons can be specified with the **binWidth** option, which controls the width of the (pointy-topped) hexagons.
 
 <img src="./img/hexbin.png" width="640" alt="a chart showing the inverse relationship of fuel economy to engine displacement, and the positive correlation of engine displacement and weight; hexagonal bins of varying size represent the number of cars at each location, while color encodes the mean weight of nearby cars">
 
@@ -27,11 +27,9 @@ Plot.plot({
 })
 ```
 
-The new hexgrid decoration mark draws a hexagonal grid. It is intended to be used with the hexbin transform as an alternative to the default horizontal and vertical axis grid.
+The new [hexgrid decoration mark](./README.md#hexgrid) draws a hexagonal grid. It is intended to be used with the hexbin transform as an alternative to the default horizontal and vertical axis grid.
 
-The dot mark now supports the *hexagon* symbol type for pointy-topped hexagons. The new circle and hexagon marks are convenience shorthand for dot marks with the *circle* and *hexagon* symbol, respectively. The dotX, dotY, textX, and textY marks now support the **interval** option.
-
-The new dodge transform can be used to produce beeswarm plots. Given an *x* channel representing the desired horizontal position of circles, the dodgeY transform derives a new *y* (vertical position) channel such that the circles do not overlap; the dodgeX transform similarly derives a new *x* channel given a *y* channel. If an *r* channel is specified, the circles may have varying radius.
+The new [dodge transform](./README.md#dodge) can be used to produce beeswarm plots. Given an *x* channel representing the desired horizontal position of circles, the dodgeY transform derives a new *y* (vertical position) channel such that the circles do not overlap; the dodgeX transform similarly derives a new *x* channel given a *y* channel. If an *r* channel is specified, the circles may have varying radius.
 
 [breaking] Color scales with diverging color schemes now default to the *diverging* scale type instead of the *linear* scale type. This includes the *brbg*, *prgn*, *piyg*, *puor*, *rdbu*, *rdgy*, *rdylbu*, *rdylgn*, *spectral*, *burd*, and *buylrd* schemes. If you want to use a diverging color scheme with a linear color scale, set the scale **type** to *linear*. Color scales will also default to diverging if the scale **pivot** option is set. (For diverging scales, the **pivot** option defaults to zero.)
 
@@ -43,6 +41,8 @@ Plot.dot(earthquakes, {x: "longitude", y: "latitude", r: "intensity", sort: {cha
 
 The dot mark now sorts by descending radius by default to reduce occlusion.
 
+The [dot mark](./README.md#dot) now supports the *hexagon* symbol type for pointy-topped hexagons. The new [circle](./README.md#plotcircledata-options) and [hexagon](./README.md#plothexagondata-options) marks are convenience shorthand for dot marks with the *circle* and *hexagon* symbol, respectively. The dotX, dotY, textX, and textY marks now support the **interval** option.
+
 The **zero** scale option (like the **nice** and **clamp** options) may now be specified as a top-level option, applying to all quantitative scales.
 
 The rule mark now correctly respects the **dx** and **dy** options.