Include Support recommendations in README

Author: nathanhosselton

README.markdown

@@ -92,6 +92,11 @@ Neither CocoaPods or Carthage will install PromiseKit 2 for an iOS 7 target. You
 † There is no Swift support with PromiseKit 1.x installed via CocoaPods.<br>‡ PromiseKit 1.x will work as far back as iOS 5 if required.
 
 
+# Support
+
+PromiseKit is lucky enough to have a large community behind it which is reflected in our [Gitter chat](https://gitter.im/mxcl/PromiseKit). If you're new to PromiseKit and are stumped or otherwise have a question that doesn't feel like an issue (and isn't answered in our [documentation](http://promisekit.org/introduction)) then our Gitter is a great place to go for help. Of course if you're onto something that you believe is broken or could be improved then opening a new issue is still the way to go 👍.
+
+
 # Donations
 
 PromiseKit is hundreds of hours of work almost completely by just me: [Max Howell](https://twitter.com/mxcl). I thoroughly enjoyed making PromiseKit, but nevertheless if you have found it useful then your bitcoin will give me a warm fuzzy feeling from my head right down to my toes: 1JDbV5zuym3jFw4kBCc5Z758maUD8e4dKR.