Protocol stack doc update

i2p2www/pages/site/docs/protocol/index.html

 {% extends "global/layout.html" %}
 {% block title %}{% trans %}Protocol Stack{% endtrans %}{% endblock %}
-{% block lastupdated %}{% trans %}August 2010{% endtrans %}{% endblock %}
-{% block accuratefor %}0.8{% endblock %}
+{% block lastupdated %}2021-12{% endblock %}
+{% block accuratefor %}0.9.52{% endblock %}
 {% block content %}
 
 <p>{% trans docs=site_url('docs') -%}
@@ -29,10 +29,10 @@ The capabilities are listed below, starting at the bottom of the protocol stack.
     <li>
 {% trans -%}
 <b>I2P Transport Layer:</b> provide encrypted connections between 2 I2P routers. These are not anonymous yet, this is strictly a hop-to-hop connection.
-Two protocols are implemented to provide these capabilities. NTCP builds on top of TCP, while SSU uses UDP.
+Two protocols are implemented to provide these capabilities. NTCP2 builds on top of TCP, while SSU uses UDP.
 {%- endtrans %}
         <br />
-        <a href="{{ site_url('docs/transport/ntcp') }}">NTCP</a>: {% trans %}NIO-based TCP{% endtrans %}
+        <a href="{{ spec_url('ntcp2') }}">NTCP2</a>: {% trans %}NIO-based TCP{% endtrans %}
         <br />
         <a href="{{ site_url('docs/transport/ssu') }}">SSU</a>: {% trans %}Secure Semi-reliable UDP{% endtrans %}
     </li>
@@ -102,9 +102,9 @@ We can order this based on the I2P stack layer they use.
 {%- endtrans %}</p>
 <ul>
     <li>{% trans %}<b>Streaming/datagram applications</b>: i2psnark, Syndie, i2phex...{% endtrans %}</li>
-    <li>{% trans %}<b>SAM/BOB applications</b>: IMule, i2p-bt, i2prufus, Robert...{% endtrans %}</li>
+    <li>{% trans %}<b>SAM applications</b>: IMule, i2p-bt...{% endtrans %}</li>
     <li>{% trans plugins=site_url('docs/plugins') %}<b>Other I2P applications</b>: Syndie, EepGet, <a href="{{ plugins }}">plugins</a>...{% endtrans %}</li>
-    <li>{% trans %}<b>Regular applications</b>: Jetty, Apache, Monotone, CVS, browsers, e-mail...{% endtrans %}</li>
+    <li>{% trans %}<b>Regular applications</b>: Jetty, Apache, Git, browsers, e-mail...{% endtrans %}</li>
 </ul>
 
     <div class="box" style="text-align:center;">
@@ -115,7 +115,7 @@ We can order this based on the I2P stack layer they use.
 <br/>
 
 <p>
-* {% trans %}Note: SAM/SAMv2 can use both the streaming lib and datagrams.{% endtrans %}
+* {% trans %}Note: SAM can use both the streaming lib and datagrams.{% endtrans %}
 </p>
 
 {% endblock %}