shoppinglistdbaccess comments

backend/API/DBAccess/ShoppingListDBAccess.cs

@@ -14,6 +14,8 @@ namespace API.DBAccess
         {
             _context = context;
         }
+
+        // Read the shoppinglist connected to the user
         public async Task<User> ReadShoppingList(int userId)
         {
             var user = await _context.Users.Include(u => u.ShoppingList).FirstOrDefaultAsync(u => u.Id == userId);
@@ -21,6 +23,7 @@ namespace API.DBAccess
             return user;
         }
 
+        // Updates the shoppinglist
         public async Task<IActionResult> UpdateShoppingList(User user)
         {
             _context.Entry(user).State = EntityState.Modified;