tweak contributing instructions to keep a running changelog

CONTRIBUTING.md

@@ -397,9 +397,10 @@ Make your changes to source files under `modules/`.
 The `iD.js` and `iD.min.js` files in this project are autogenerated - don't edit them.
 
 1. Try your change locally.  Run `npm start` and visit `localhost:8080` in a browser.
-2. Run lint and tests with `npm test`
-3. Commit your changes with an informative commit message
-4. [Submit a pull request](https://help.github.com/articles/using-pull-requests) to the `openstreetmap/iD` project.
+2. Run lint and tests with `npm test`.
+3. If you feel like it, append a line describing your changes to the project's [changelog](https://github.com/openstreetmap/iD/blob/develop/CHANGELOG.md).
+4. Commit your changes with an informative commit message.
+5. [Submit a pull request](https://help.github.com/articles/using-pull-requests) to the `openstreetmap/iD` project.
 
 
 ## Using GitHub and git

RELEASING.md

@@ -6,7 +6,7 @@
 
 ### Prep
 - If you don't have a `transifex.auth` file in the root of your iD checkout,
-you'll need to create a Transifex account, ask @quincylvania or @bhousel for admin rights
+you'll need to create a Transifex account, ask @tyr_asd or @bhousel for admin rights
 on the iD project, and then create this file with contents like<br><pre>
      {"user": "yourusername", "password": "*******"}</pre>This file is not version-controlled and will not be checked in.
 
@@ -24,7 +24,7 @@ $  npm run translations
 $  git add . && git commit -m 'npm run translations'
 ```
 
-- Update `CHANGELOG.md`
+- Check and finalize `CHANGELOG.md`
 - Set release version number in `modules/core/context.js` and `package.json`
 
 ```bash