Update README.md

Author: ReactMVC

README.md

@@ -7,4 +7,22 @@ Each html file in this repository is an example.
 ## Contact the developer
 [Telegram](https://t.me/h3dev)
 <br><br>
-[Email](mailto:[email protected])
+[Email](mailto:[email protected])
+<hr>
+## Router Important note. 
+If you build a router with Elroid, add these so that when https://copy.reactmvc.ir/about is refreshed, you will not get a 404 error.
+<br>
+
+For Apache
+```
+RewriteEngine On 
+RewriteCond %{REQUEST_FILENAME} !-f
+RewriteRule ^(.*)$ index.html [L,QSA] 
+```
+For Nginx
+```
+ location / { 
+ try_files $uri $uri/ /index.html; 
+ }  
+ ```
+Apache in the .htaccess file and Nginx in the nginx.conf file