[node] fix links in CHANGELOG.md [skip ci]

platform/node/CHANGELOG.md

@@ -1,19 +1,19 @@
 # 2.0.0
 
-- Integrates Node.js bindings into core mapbox-gl-native project. (#2179)
+- Integrates Node.js bindings into core mapbox-gl-native project. ([#2179](https://github.com/mapbox/mapbox-gl-native/pull/2179))
 - Requires an options object argument to `new mbgl.Map()`
   (with required `request` and optional `cancel` methods),
-  drops `mbgl.FileSource`. (mapbox/node-mapbox-gl-native#143)
+  drops `mbgl.FileSource`. ([mapbox/node-mapbox-gl-native#143](https://github.com/mapbox/node-mapbox-gl-native/pull/143))
 - Changes `request` semantics to pass a second, callback argument instead
-  of needing to call `req.respond`. (#2299)
+  of needing to call `req.respond`. ([#2299](https://github.com/mapbox/mapbox-gl-native/pull/2299))
 - Requires numerical `ratio` in `mbgl.Map` options argument.
   Map pixel ratio is now immutable and can no longer be set with
-  render options. (a8d9b921d71a91d7f8eff82e5a584aaab8b7d1c6, #1799)
+  render options. ([`a8d9b92`](https://github.com/mapbox/mapbox-gl-native/commit/a8d9b921d71a91d7f8eff82e5a584aaab8b7d1c6), [#1799](https://github.com/mapbox/mapbox-gl-native/pull/1799))
 - `map.render` now returns a raw image buffer instead of an object with 
-  `width`, `height` and `pixels` properties. (#2262)
+  `width`, `height` and `pixels` properties. ([#2262](https://github.com/mapbox/mapbox-gl-native/pull/2262))
 - Adds support for rendering v8 styles.
 - No longer loads resources before a render request is made.
-- Adds io.js v3.x support.
+- Adds io.js v3.x support. ([#2261](https://github.com/mapbox/mapbox-gl-native/pull/2261))
 
 # 1.1.3