Update CONTRIBUTING.md

Author: indus

CONTRIBUTING.md

@@ -7,7 +7,7 @@
 Please read over [README.md](https://github.com/js-org/js.org/blob/master/README.md) for general instructions on claiming a `js.org` subdomain.
 
 Before creating your pull request please review the following items and ensure you are in the clear with your request:
-* What subdomian should you request: [Subdomain Determination](https://github.com/js-org/js.org/wiki/Subdomain-Determination)
+* What subdomain should you request: [Subdomain Determination](https://github.com/js-org/js.org/wiki/Subdomain-Determination)
 * Is your site ready for a `js.org` subdomain: [No Content](https://github.com/js-org/js.org/wiki/No-Content)
 * Are you happy with the Terms and Conditions of `js.org`: [Terms and Conditions](http://js.org/terms.html)