update readme

Update readme with new options

Author: xibman

README.md

@@ -24,6 +24,14 @@ As long as the user is active, the (optional) keep-alive URL keeps getting pinge
 
 ## Documentation
 ### Options
+**title**<br>
+
+Type: `String`
+
+Default: `'Your session is about to expire!'`
+
+This is the text shown to user via Bootstrap warning dialog after warning period. (modal title)
+
 **message**<br>
 
 Type: `String`
@@ -32,6 +40,22 @@ Default: `'Your session is about to expire.'`
 
 This is the text shown to user via Bootstrap warning dialog after warning period.
 
+**logoutButton**<br>
+
+Type: `String`
+
+Default: `'Logout'`
+
+This is the text shown to user via Bootstrap warning dialog after warning period in the logout button.
+
+**keepAliveButton**<br>
+
+Type: `String`
+
+Default: `'Stay Connected'`
+
+This is the text shown to user via Bootstrap warning dialog after warning period in the Kepp Alive button.
+
 **keepAliveUrl**
 
 Type: `String`
@@ -56,6 +80,14 @@ Default: `5000` (5 seconds)
 
 Time in milliseconds between two keep-alive pings.
 
+**ajaxType**
+
+Type: `String`
+
+Default: `'POST'`
+
+If you need to specify the ajax method
+
 **ajaxData**
 
 Type: `String`