Added link to (correct) smoke_spec.yaml

Hi, the link to smoke_spec.yaml you have on http://freeside.co/betamax/ in "An example tape file can be found here." is wrong.  I don't know where the src for http://freeside.co/betamax/ is, so instead of just added it to the readme - maybe you want to change http://freeside.co/betamax/ too.

PS: I blogged http://blog2.vorburger.ch/2013/11/rest-api-testing-and-mocking.html yesterday, and (via a friend) found your Betamax today.. ;-) 

PPS: Any thoughts re. the idea to replay a tape against a server? If yes, let's discuss in #119 - @lbovet who just opened it is sitting right opposite me... ;-)

readme.md

@@ -15,7 +15,7 @@ Add a `@Rule RecorderRule` property to your test and annotate test methods with
 Future test runs replay responses from _tape_ without traffic going to the real target. No more 3rd party downtime or rate limits breaking your tests. You can even run your tests offline! Insert different _tapes_ to stub different responses.
 
 ### Customize
-_Tapes_ are just [YAML][yaml] files so you can edit them with a text editor, commit to source control, share with your team & use on continuous integration.
+_Tapes_ are just [YAML][yaml] files so you can edit them with a text editor, commit to source control, share with your team & use on continuous integration.  An example tape file can be found [here](https://github.com/robfletcher/betamax/blob/master/betamax-proxy/src/test/resources/betamax/tapes/smoke_spec.yaml).
 
 ## Full documentation
 
@@ -50,4 +50,4 @@ Please get in touch if you have any  feedback. You can raise defects and feature
 ## Notes on running tests from inside IntelliJ IDEA
 
 Go to _Settings -> Compiler_ and ensure that `*.keystore` appears in the _Resource patterns_ otherwise IDEA will not
-make the SSL keystore available on the classpath when tests run.
+make the SSL keystore available on the classpath when tests run.