Update readme with release status of 0.2

README.md

@@ -80,7 +80,7 @@ val config = UnleashConfig.newBuilder()
 val client = UnleashClient(config = config, unleashContext = context)
 ```
 
-#### FilePolling (since v0.2 *UNRELEASED*)
+#### FilePolling (since v0.2)
 The name `FilePolling` can be a tad misleading, since this policy doesn't actually poll, it simply loads a file of toggles from disk on startup, and uses that to answer all client calls.
 Useful when your app might have limited internet connectivity, you'd like to run tests with a known toggle state or you simply do not want background activity.
 
@@ -102,7 +102,7 @@ val client = UnleashClient(config = config, unleashContext = context)
 
 ```
 
-### Metrics (since v0.2 *UNRELEASED*)
+### Metrics (since v0.2)
 If you'd like the client to post metrics to the proxy so the admin interface can be updated, add a call to `enableMetrics()`.
 
 ```kotlin