update docs for iOS drawer animations in top-level-api section (#1619)

* update docs for ios drawer animations in top-level-api section

* update docs for ios drawer animations in top-level-api section

docs/top-level-api.md

       leftDrawerWidth: 50 // optional, add this if you want a define left drawer width (50=percent)
       rightDrawerWidth: 50 // optional, add this if you want a define right drawer width (50=percent)
     },
+    type: 'MMDrawer', // optional, iOS only, types: 'TheSideBar', 'MMDrawer' default: 'MMDrawer'
+    animationType: 'door', //optional, iOS only, for MMDrawer: 'door', 'parallax', 'slide', 'slide-and-scale'
+                                        // for TheSideBar: 'airbnb', 'facebook', 'luvocracy','wunder-list'
     disableOpenGesture: false // optional, can the drawer be opened with a swipe instead of button
   },
   passProps: {}, // simple serializable object that will pass as props to all top screens (optional)
       leftDrawerWidth: 50 // optional, add this if you want a define left drawer width (50=percent)
       rightDrawerWidth: 50 // optional, add this if you want a define right drawer width (50=percent)
     },
+    type: 'MMDrawer', // optional, iOS only, types: 'TheSideBar', 'MMDrawer' default: 'MMDrawer'
+    animationType: 'door', //optional, iOS only, for MMDrawer: 'door', 'parallax', 'slide', 'slide-and-scale'
+                                        // for TheSideBar: 'airbnb', 'facebook', 'luvocracy','wunder-list'
     disableOpenGesture: false // optional, can the drawer be opened with a swipe instead of button
   },
   passProps: {}, // simple serializable object that will pass as props to all top screens (optional)