Massively expand the contributing page

Author: brson

_layouts/default.html

@@ -53,7 +53,7 @@
 	    <a href="community.html">Community</a>
 	  </li>
 	  <li>
-	    <a href="contributions.html">Contributing</a>
+	    <a href="contribute.html">Contributing</a>
 	  </li>
           <li>
             <a href="legal.html">Legal</a>

community.md

@@ -150,6 +150,7 @@ socialize with other people with a similar interest. Meetings are
 usually held monthly and very informal. Meetings are open to everyone.
 
 There's a global [calendar][calendar] for keeping up with Rust events.
+Contact the [community team][community_team] to add your own.
 
 [user_group]: ./user_groups.html
 [calendar]: https://www.google.com/calendar/[email protected]
@@ -203,12 +204,11 @@ would be the [community team][community_team].
 [community_team]: https://www.rust-lang.org/team.html#Community
 [mod_team]: https://www.rust-lang.org/team.html#Moderation
 
+<a name="rust-development"></a>
 ## Rust Development
 
 Rust has had over [1,200 different contributors][authors], a number that grows
-every single week. We'd love for you to join that list! If you aren't sure what
-to work on or how to get started, take a look at our
-[how to contribute][contribute] page.
+every single week. [We'd love for you to join that list][contribute]!
 
 As mentioned above, the [Rust Internals Forum][internals_forum] is dedicated to
 discussing the design and implementation of Rust. A lot of discussion also
@@ -227,7 +227,7 @@ team business, including the progression of proposals through the RFC and
 implementation process.
 
 [authors]: https://github.com/rust-lang/rust/blob/master/AUTHORS.txt
-[contribute]: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md
+[contribute]: contribute.html
 [github]: https://github.com/rust-lang/rust
 [rfcs]: https://github.com/rust-lang/rfcs
 [team_reports]: https://github.com/rust-lang/subteams