nb extension

Author: JerryI

package.json

@@ -52,6 +52,10 @@
           "role": "Editor",
           "icon": "./Electron/build/file/512x512.icns"
         },
+        {
+          "ext": "nb",
+          "role": "Editor"
+        },         
         {
           "ext": "wlw",
           "name": "WLJS Widget",
@@ -90,6 +94,10 @@
           "role": "Editor",
           "icon": "./Electron/build/file/512x512.png"
         },
+        {
+          "ext": "nb",
+          "role": "Editor"
+        }, 
         {
           "mimeType": "application/wlw",
           "ext": "wlw",