Match GitHub description. Fixes #2129.

component.json

 {
   "name": "d3",
   "repository": "mbostock/d3",
-  "description": "A small, free JavaScript library for manipulating documents based on data.",
+  "description": "A JavaScript visualization library for HTML and SVG.",
   "keywords": [
     "dom",
     "w3c",

composer.json

 {
-	"name": "mbostock/d3",
-	"description": "A small, free JavaScript library for manipulating documents based on data.",
-	"keywords": ["dom", "svg", "visualization", "js", "canvas"],
-	"homepage": "http://d3js.org/",
-	"license": "BSD-3-Clause",
-	"authors": [
-		{
-			"name": "Mike Bostock",
-			"homepage": "http://bost.ocks.org/mike"
-		}
-	],
-	"support": {
-		"issues": "https://github.com/mbostock/d3/issues",
-		"wiki": "https://github.com/mbostock/d3/wiki",
-		"API": "https://github.com/mbostock/d3/wiki/API-Reference",
-		"source": "https://github.com/mbostock/d3"
-	}
+  "name": "mbostock/d3",
+  "description": "A JavaScript visualization library for HTML and SVG.",
+  "keywords": [
+    "dom",
+    "w3c",
+    "visualization",
+    "svg",
+    "animation",
+    "canvas"
+  ],
+  "homepage": "http://d3js.org/",
+  "license": "BSD-3-Clause",
+  "authors": [
+    {
+      "name": "Mike Bostock",
+      "homepage": "http://bost.ocks.org/mike"
+    }
+  ],
+  "support": {
+    "issues": "https://github.com/mbostock/d3/issues",
+    "wiki": "https://github.com/mbostock/d3/wiki",
+    "API": "https://github.com/mbostock/d3/wiki/API-Reference",
+    "source": "https://github.com/mbostock/d3"
+  }
 }

package.json

 {
   "name": "d3",
   "version": "3.5.0pre",
-  "description": "A small, free JavaScript library for manipulating documents based on data.",
+  "description": "A JavaScript visualization library for HTML and SVG.",
   "keywords": [
     "dom",
     "w3c",