Add Code of Conduct, remove translation chart, other minor cleanups

CONTRIBUTING.md

@@ -5,9 +5,8 @@ so that you can write code that fits in perfectly.
 
 ## Code of Conduct
 
-We want everyone to feel comfortable contributing to iD.  Please read the
-[CODE_OF_CONDUCT.md](https://github.com/openstreetmap/iD/blob/master/CODE_OF_CONDUCT.md)
-document and remember to be nice to one another.
+We want everyone to feel comfortable contributing to iD.  Please read the project
+[Code of Conduct](CODE_OF_CONDUCT.md) and remember to be nice to one another.
 
 ## Reporting Issues
 

README.md

@@ -7,16 +7,21 @@
 * iD is a JavaScript [OpenStreetMap](http://www.openstreetmap.org/) editor.
 * It's intentionally simple. It lets you do the most basic tasks while
   not breaking other people's data.
-* It supports modern browsers. Data is rendered with [d3](http://d3js.org/).
+* It supports modern browsers. Data is rendered with [d3.js](http://d3js.org/).
 
 ## Participate!
 
-* [Try out the latest stable release](http://openstreetmap.us/iD/release)
-* [Read up on Contributing and the code style of iD](CONTRIBUTING.md)
-* See [open issues in the issue tracker](https://github.com/openstreetmap/iD/issues?state=open) if you're looking for something to do
+* Read the project [Code of Conduct](CODE_OF_CONDUCT.md) and remember to be nice to one another.
+* Read up on [Contributing and the code style of iD](CONTRIBUTING.md).
+* See [open issues in the issue tracker](https://github.com/openstreetmap/iD/issues?state=open) if you're looking for something to do.
 * [Translate!](https://github.com/openstreetmap/iD/blob/master/CONTRIBUTING.md#translating)
+* Test a prerelease version of iD:
+  * Stable mirror of `release` branch:  http://openstreetmap.us/iD/release
+  * Development mirror of `master` branch:  http://openstreetmap.us/iD/master
 
-[![translation chart](https://www.transifex.com/projects/p/id-editor/chart/image_png)](https://github.com/openstreetmap/iD/blob/master/CONTRIBUTING.md#translating)
+Come on in, the water's lovely. More help? Ping `jfire` or `bhousel` on
+[OpenStreetMap IRC](http://wiki.openstreetmap.org/wiki/IRC)
+(`irc.oftc.net`, in `#iD` or `#osm-dev` or `#osm`) or on the [OpenStreetMap `dev` mailing list](http://wiki.openstreetmap.org/wiki/Mailing_lists).
 
 ## Prerequisites
 
@@ -35,16 +40,13 @@ To run the current development version of iD on your own computer:
 4. Start a local web server, e.g. `python -m SimpleHTTPServer`
 5. Open `http://localhost:8000/` in a web browser
 
-Come on in, the water's lovely. More help? Ping tmcw, jfire, or bhousel on IRC
-(`irc.oftc.net`, in `#iD` or `#osm-dev` or `#osm`) or on the OSM mailing lists.
-
 For guidance on building a packaged version, running tests, and contributing to
 development, see [CONTRIBUTING.md](CONTRIBUTING.md).
 
 ## License
 
 iD is available under the [ISC License](https://opensource.org/licenses/ISC).
-It includes [d3js](http://d3js.org/), which BSD-licensed.
+It includes [d3.js](http://d3js.org/), which BSD-licensed.
 
 ## Thank you