Update README.md

Author: KingsMentor

README.md

@@ -1,8 +1,18 @@
+[![](https://jitpack.io/v/KingsMentor/Rationale.svg)](https://jitpack.io/#KingsMentor/Rationale)
 # Rationale
 Android permission Rationale Helper.
 Similar to WhatsApp Permission Rationale Dialog that manages permission request .
 
 ![advisible flow to use on handling permissions](http://share.gifyoutube.com/g5K0Y9.gif "The New Flow")
+
+#### How it Works.
+
+1. Init with a list of Permission called SmoothPermissions
+2. Rationale runs a check on all SmoothPermissions to determine which Permission to show a message for
+3. if the list is empty, it returns success with empty list
+4. if there is any permission to be granted, it shows the appropraite rationale to the user 
+5. returns permissions to be requested for based on user interaction
+
 # Adding Rationale to your Project
 
 **Step 1** Add it in your root build.gradle at the end of repositories:
@@ -45,3 +55,17 @@ final PermissionDetails smsPermissionDetails = new PermissionDetails().getPermis
                 .addSmoothPermission(new SmoothPermission(smsPermissionDetails))
                 .includeStyle(R.style.Beliv_RationaleStyle).build(true);
 ```
+
+- requestCode - request code to track response from onActivityResult
+- includeStyle - styling the Rationale Dialog. more details on styling is found below
+- SmoothPermissions - List of Permission to run Rationale Dialog on
+- build - takes `true` for Rationale Dialog to show Permission that has not been granted. `false` to only show rationale for permission permanently denied.
+##### PermissionDetails
+Build permission with :
+- Permission name
+- Permission Icon
+- rationaleMessage
+- deniedMessage - message to display when Permission is permanently denied by the user
+- description - System Permission Description
+- protectionLevel - Protection level of permission
+