Meta: reference whatwg/meta resources

Helps with whatwg/meta#65.

CONTRIBUTING.md

@@ -0,0 +1 @@
+Please see the [contributor guidelines](https://github.com/whatwg/meta/blob/master/CONTRIBUTING.md).

README.md

@@ -16,8 +16,8 @@ started, leave a comment on the issue or ask around [on IRC](https://wiki.whatwg
 ### Pull requests
 
 In short, change `xhr.bs` and submit your patch, with a
-[good commit message](https://github.com/erlang/otp/wiki/Writing-good-commit-messages). Consider
-reading through the [WHATWG FAQ](https://wiki.whatwg.org/wiki/FAQ) if you are new here.
+[good commit message](https://github.com/whatwg/meta/blob/master/COMMITTING.md). Consider
+reading through the [WHATWG FAQ](https://whatwg.org/faq) if you are new here.
 
 Please add your name to the Acknowledgments section in your first pull request, even for trivial
 fixes. The names are sorted lexicographically.
@@ -32,9 +32,9 @@ If you want to do a complete "local deploy" including commit and/or branch snaps
 ### Merge policy
 
 If you can commit to this repository, see the
-[html repository's TEAM](https://github.com/whatwg/html/blob/master/TEAM.md) for guidelines.
+[maintainer guidelines](https://github.com/whatwg/meta/blob/master/MAINTAINERS.md).
 
 ### Tests
 
-Tests can be found in the `XMLHttpRequest/` directory of
+Tests can be found in the `xhr/` directory of
 [web-platform-tests](https://github.com/w3c/web-platform-tests).