Update README.md

Author: amitshekhariitbhu

README.md

@@ -13,6 +13,8 @@
 * See all the data in the shared preferences used in your application.
 * Run any sql query on the given database to update and delete your data.
 * Directly edit the database values.
+* Directly edit shared preferences
+* Delete database rows and shared preferences
 * Search in your data.
 * Sort data.