dns: mention Unbound & ctrl.blog on Actually secure DNS over TLS in Unbound (#1219)

* dns: mention Unbound & my config file

* source_code: add Unbound

* dns: close a tag

* dns: attempt to fix warning

* dns: remove extra <

* dns.html: apply @nitrohorse's wording suggestion

* dns: replace link to my config with ctrl.blog

_includes/sections/dns.html

@@ -459,6 +459,10 @@ github="https://github.com/jedisct1/dnscrypt-proxy"
     <ul>
       <li><em><a href="https://namecoin.info/">Namecoin</a></em> - A decentralized DNS open-source information registration and transfer system based on the Bitcoin cryptocurrency.</li>
       <li><em><a href="https://dnsprivacy.org/wiki/display/DP/DNS+Privacy+Daemon+-+Stubby">Stubby</a></em> - An open-source application for Linux, macOS, and Windows that acts as a local DNS Privacy stub resolver using DoT.</li>
+      <li><em><a href="https://nlnetlabs.nl/projects/unbound/about/">Unbound</a></em> - a validating, recursive, caching DNS resolver. It can also be ran network-wide and has supported DNS-over-TLS since version 1.7.3.</li>
+      <ul>
+          <li>See also <a href="https://www.ctrl.blog/entry/unbound-tls-forwarding.html">Actually secure DNS over TLS in Unbound on ctrl.blog</a>.</li>
+      </ul>
     </ul>
   </li>
   <li><strong>Network wide DNS servers:</strong>

source_code.md

@@ -313,9 +313,11 @@ PowerDNS: https://github.com/PowerDNS/pdns
 
 #### Local DNS servers
 
+- Namecoin: https://github.com/namecoin
+
 - Stubby: https://github.com/getdnsapi/stubby
 
-- Namecoin: https://github.com/namecoin
+- Unbound: https://github.com/NLnetLabs/unbound
 
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