up version to 0.9.28

Author: DCFApixels

package.json

@@ -8,7 +8,7 @@
     "displayName": "Notes",
     "description": "",
     "unity": "2020.3",
-    "version": "0.9.27",
+    "version": "0.9.28",
     "repository": {
         "type": "git",
         "url": "https://github.com/DCFApixels/Notes-Unity.git"