add sef_mode nginx example

README.md

@@ -14,5 +14,17 @@ php-gd
 
 https://github.com/kvazar-network/database
 
+### nginx sef mode
+
+```
+	location / {
+		try_files $uri $uri/ =404 @sef;
+	}
+
+	location @sef {
+		rewrite ^(/.*)$ /?$1 last;
+	}
+```
+
 ### webapp example
 https://kvazar.today