Add Readme and ignore c code from coverage

.slather.yml

@@ -1,3 +1,5 @@
 coverage_service: coveralls
 xcodeproj: BMSAnalytics.xcodeproj
 scheme: BMSAnalytics iOS
+ignore:
+  - Source/SSZipArchive/*

README.md

@@ -208,6 +208,16 @@ Analytics.send(completionHandler: { (response: Response?, error: Error?) in
 
 By default, the Logger class will print its logs to Xcode console. If is advised to disable Logger output for applications built in release mode. In order to do so add a debug flag named `RELEASE_BUILD` to your release build configuration. One way of doing so is adding `-D RELEASE_BUILD` to the `Other Swift Flags` section of the project build configuration.
 
+--
+
+### Invoking In app feedback mode
+
+Users and Testers can record and send feedback and bug reports 'In-app', as they run and use the application. App owners get a deeper sense of the application's user experience with this context rich user feedback. Developers on the other hand receive accurate application contexts to diagnose and fix bugs / feature deficiencies. 
+
+Applications can invoke feedback mode on any application event such as buttons, menu actions or gestures on calling the method:
+
+```Analytics.triggerFeedbackMode()```
+
 --------
 
 ## License