Fix section links.

README.md

@@ -22,32 +22,33 @@ For the non-minified version, remove `.min` from the file name.
 
 D3 4.0 is a [collection of modules](https://github.com/d3) that are designed to work together; you can use the modules independently, or you can use them together as part of the default build. The source and documentation for each module is available in its repository. Follow the links below to learn more.
 
-* [Arrays](#arrays) ([Statistics](#statistics), [Histograms](#histograms), [Search](#search), [Transformations](#transformations))
-* [Axes](#axes)
-* [Collections](#collections) ([Objects](#objects), [Maps](#maps), [Sets](#sets), [Nests](#nests))
-* [Colors](#colors)
-* [Delimiter-Separated Values](#delimiter-separated-values)
-* [Dispatches](#dispatches)
-* [Dragging](#dragging)
-* [Easings](#easings)
-* [Forces](#forces)
-* [Hierarchies](#hierarchies)
-* [Interpolators](#interpolators)
-* [Number Formats](#number-formats)
-* [Paths](#paths)
-* [Polygons](#polygons)
-* [Quadtrees](#quadtrees)
-* [Queues](#queues)
-* [Random Numbers](#random-numbers)
-* [Requests](#requests)
-* [Scales](#scales) ([Continuous](#continuous-scales), [Sequential](#sequential-color-scales), [Quantize](#quantize-scales), [Ordinal](#ordinal-scales))
-* [Selections](#selections) ([Selecting](#selecting-elements), [Modifying](#modifying-elements), [Data](#joining-data), [Events](#handling-events), [Control](#control-flow), [Namespaces](#namespaces))
-* [Shapes](#shapes) ([Arcs](#arcs), [Pies](#pies), [Lines](#lines), [Areas](#areas), [Curves](#curves), [Symbols](#symbols), [Stacks](#stacks))
-* [Time Formats](#time-formats)
-* [Time Intervals](#time-intervals)
-* [Timers](#timers)
-* [Transitions](#transitions)
-* [Voronoi Diagrams](#voronoi-diagrams)
+* [Arrays](#arrays-d3-array) ([Statistics](#statistics), [Histograms](#histograms), [Search](#search), [Transformations](#transformations))
+* [Axes](#axes-d3-axis)
+* [Collections](#collections-d3-collection) ([Objects](#objects), [Maps](#maps), [Sets](#sets), [Nests](#nests))
+* [Colors](#colors-d3-color)
+* [Delimiter-Separated Values](#delimiter-separated-values-d3-dsv)
+* [Dispatches](#dispatches-d3-dispatch)
+* [Dragging](#dragging-d3-drag)
+* [Easings](#easings-d3-ease)
+* [Forces](#forces-d3-force)
+* [Hierarchies](#hierarchies-d3-hierarchy)
+* [Interpolators](#interpolators-d3-interpolate)
+* [Number Formats](#number-formats-d3-format)
+* [Paths](#paths-d3-path)
+* [Polygons](#polygons-d3-polygon)
+* [Quadtrees](#quadtrees-d3-quadtree)
+* [Queues](#queues-d3-queue)
+* [Random Numbers](#random-numbers-d3-random)
+* [Requests](#requests-d3-request)
+* [Scales](#scales-d3-scale) ([Continuous](#continuous-scales), [Sequential](#sequential-color-scales), [Quantize](#quantize-scales), [Ordinal](#ordinal-scales))
+* [Selections](#selections-d3-selection) ([Selecting](#selecting-elements), [Modifying](#modifying-elements), [Data](#joining-data), [Events](#handling-events), [Control](#control-flow), [Namespaces](#namespaces))
+* [Shapes](#shapes-d3-shape) ([Arcs](#arcs), [Pies](#pies), [Lines](#lines), [Areas](#areas), [Curves](#curves), [Symbols](#symbols), [Stacks](#stacks))
+* [Time Formats](#time-formats-d3-time-format)
+* [Time Intervals](#time-intervals-d3-time)
+* [Timers](#timers-d3-timer)
+* [Transitions](#transitions-d3-transition)
+* [Voronoi Diagrams](#voronoi-diagrams-d3-voronoi)
+* [Zooming](#zooming-d3-zoom)
 
 D3 uses [semantic versioning](http://semver.org/). The current version is exposed as d3.version.