Move i2p-bote to worth mentioning (#755)

Moved i2p-bote to worth mentioning due to lack of development, difficulty of use, and no build being available except for a magnet link on the i2p wiki. Consider replacing with ZeroNet's ZeroMail.

_includes/sections/email-alternatives.html

@@ -3,22 +3,14 @@
 <div class="row mb-2">
 
   {% include card.html color="success"
-  title="I2P-Bote"
-  image="assets/img/tools/I2P.png"
-  url="https://i2pbote.xyz/"
-  footer="OS: Windows, macOS, Linux, Android, BSD / Solaris."
-  description="I2P-Bote is a fully decentralized and distributed email system. It supports different identities and does not expose email headers. Currently (2015), it is still
-  in beta version and can be accessed via its web application interface or IMAP and SMTP. All bote-mails are transparently end-to-end encrypted and, optionally, signed by the sender's private key."
-  %}
-
-  {% include card.html color="primary"
   title="Bitmessage"
   image="assets/img/tools/Bitmessage.png"
   url="https://bitmessage.org/"
   footer="OS: Windows, macOS, Linux."
   description="Bitmessage is a P2P communications protocol used to send encrypted messages to another person or to many subscribers. It is decentralized and trustless,
   meaning that you need-not inherently trust any entities like root certificate authorities. It uses strong authentication which means that the sender of a message cannot be spoofed, and it aims to hide \"non-content\" data."
-  %}    {% include card.html color="warning"
+  %}
+  {% include card.html color="primary"
   title="RetroShare"
   image="assets/img/tools/RetroShare.png"
   url="http://retroshare.net"
@@ -27,3 +19,9 @@
   %}
 
 </div>
+
+<h3>Worth Mentioning</h3>
+
+<ul>
+  <li><a href="https://i2pbote.xyz/">I2P-Bote</a> - End-to-end encrypted decentralized mail system within the I2P network.</li>
+</ul>