Update docs

Author: mwakaba2

README.md

@@ -59,14 +59,16 @@ Use the following settings to update cell execution time for a notification and
 
     // Trigger only for the last selected notebook cell execution.
     // Trigger a notification only for the last selected executed notebook cell.
+    // NOTE: Only Available in version >= v0.3.0
     "last_cell_only": false,
 
     // Minimum Notebook Cell Execution Time
     // The minimum execution time to send out notification for a particular notebook cell (in seconds).
     "minimum_cell_execution_time": 60,
 
     // Report Notebook Cell Execution Time
-    // Display notebook cell execution time in the notification.
+    // Display notebook cell execution time in the notification. 
+    // If last_cell_only is set to true, the total duration of the selected cells will be displayed.
     "report_cell_execution_time": true,
 
     // Report Notebook Cell Number

schema/plugin.json

@@ -18,7 +18,7 @@
     "report_cell_execution_time": {
       "type": "boolean",
       "title": "Report Notebook Cell Execution Time",
-      "description": "Display notebook cell execution time in the notification.",
+      "description": "Display notebook cell execution time in the notification. If last_cell_only is set to true, the total duration of the selected cells will be displayed.",
       "default": true
     },
     "report_cell_number": {
@@ -37,7 +37,7 @@
     "last_cell_only": {
       "type": "boolean",
       "title": "Trigger only for the last selected notebook cell execution.",
-      "description": "Trigger a notification only for the last selected executed notebook cell",
+      "description": "Trigger a notification only for the last selected executed notebook cell.",
       "default": false
     }
   }