Update README.md

Author: densen2014

README.md

@@ -32,7 +32,7 @@ In your Blazor page
 ![ZXingBlazor](https://user-images.githubusercontent.com/8428709/94275844-c28cf500-ff47-11ea-9c65-2370752d2b5b.gif) 
 
 ## New Components
-Handwritten 
+Handwritten  2020.10.05
 ![Sign](https://user-images.githubusercontent.com/8428709/95032378-96e1db80-06ba-11eb-8291-c00c3c2ea9fb.gif)
 
 Pages/_Host.cshtml  , in wasm is: wwwroot/index.html