diff --git a/index.html b/index.html
index 7cdc118..6188b65 100644
--- a/index.html
+++ b/index.html
@@ -23,6 +23,7 @@
         <ul>
             <li>Built on top of <a href="https://libwebsockets.org">Libwebsockets</a> with C for speed</li>
             <li>Fully-featured terminal based on <a href="https://github.com/sourcelair/xterm.js">Xterm.js</a> with CJK (<em>Chinese, Japanese, Korean</em>) and IME support</li>
+            <li>Graphical <a href="https://en.wikipedia.org/wiki/ZMODEM">ZMODEM</a> integration with <a href="https://ohse.de/uwe/software/lrzsz.html">lrzsz</a> support</li>
             <li>SSL support based on <a href="https://www.openssl.org">OpenSSL</a></li>
             <li>Run any custom command with options</li>
             <li>Basic authentication support and many other custom options</li>
@@ -70,31 +71,30 @@ USAGE:
     ttyd [options] &lt;command&gt; [&lt;arguments...&gt;]
 
 VERSION:
-    1.3.3
+    1.4.0
 
 OPTIONS:
-    --port, -p              Port to listen (default: 7681, use `0` for random port)
-    --interface, -i         Network interface to bind (eg: eth0), or UNIX domain socket path (eg: /var/run/ttyd.sock)
-    --credential, -c        Credential for Basic Authentication (format: username:password)
-    --uid, -u               User id to run with
-    --gid, -g               Group id to run with
-    --signal, -s            Signal to send to the command when exit it (default: SIGHUP)
-    --signal-list           Print a list of supported signals
-    --reconnect, -r         Time to reconnect for the client in seconds (default: 10)
-    --readonly, -R          Do not allow clients to write to the TTY
-    --client-option, -t     Send option to client (format: key=value), repeat to add more options
-    --check-origin, -O      Do not allow websocket connection from different origin
-    --max-clients, -m       Maximum clients to support (default: 0, no limit)
-    --once, -o              Accept only one client and exit on disconnection
-    --browser, -B           Open terminal with the default system browser
-    --index, -I             Custom index.html path
-    --ssl, -S               Enable SSL
-    --ssl-cert, -C          SSL certificate file path
-    --ssl-key, -K           SSL key file path
-    --ssl-ca, -A            SSL CA file path for client certificate verification
-    --debug, -d             Set log level (default: 7)
-    --version, -v           Print the version and exit
-    --help, -h              Print this text and exit
+    -p, --port              Port to listen (default: 7681, use `0` for random port)
+    -i, --interface         Network interface to bind (eg: eth0), or UNIX domain socket path (eg: /var/run/ttyd.sock)
+    -c, --credential        Credential for Basic Authentication (format: username:password)
+    -u, --uid               User id to run with
+    -g, --gid               Group id to run with
+    -s, --signal            Signal to send to the command when exit it (default: 1, SIGHUP)
+    -r, --reconnect         Time to reconnect for the client in seconds (default: 10)
+    -R, --readonly          Do not allow clients to write to the TTY
+    -t, --client-option     Send option to client (format: key=value), repeat to add more options
+    -O, --check-origin      Do not allow websocket connection from different origin
+    -m, --max-clients       Maximum clients to support (default: 0, no limit)
+    -o, --once              Accept only one client and exit on disconnection
+    -B, --browser           Open terminal with the default system browser
+    -I, --index             Custom index.html path
+    -S, --ssl               Enable SSL
+    -C, --ssl-cert          SSL certificate file path
+    -K, --ssl-key           SSL key file path
+    -A, --ssl-ca            SSL CA file path for client certificate verification
+    -d, --debug             Set log level (default: 7)
+    -v, --version           Print the version and exit
+    -h, --help              Print this text and exit
 
 Visit https://github.com/tsl0922/ttyd to get more information and report bugs.
 </code></pre>