chore: Fix the port number of the canister url (#1124)

Author: raymondk

hosting/static-website/README.md

@@ -119,7 +119,7 @@ dfx deploy
 ## Testing
 The URL for the frontend depends on the canister ID.  Local canister IDs can be obtained using `dfx canister id`, in this case `dfx canister id www`. When deployed, the URL will look like this:
 
-**http://\{ui_canister_id\}.localhost:8000**
+**http://\{ui_canister_id\}.localhost:4943**
 
 ![Candid UI](README_images/website.png)