Update V2 onions to V3, plus minor corrections (#91)

Resolves #52, Resolves #74, Resolves #80

Searx: https://searx.space
DDG: https://old.reddit.com/r/duckduckgo/comments/oc07wj/news_duckduckgo_search_now_available_via_tor/
Njalla: https://twitter.com/njal_la/status/1371832961381904393
Tor: https://www.torproject.org
Debian: https://onion.debian.org

_includes/legacy/sections/email-providers.html

@@ -19,7 +19,7 @@
     <h2 id="protonmail" class="anchor"><a href="#protonmail"><i class="fas fa-link anchor-icon"></i></a> ProtonMail {% include badge.html color="info" text="Free" %}</h2>
     <p><strong><a href="https://protonmail.com">ProtonMail.com</a></strong> is an email service with a focus on privacy, encryption, security, and ease of use. They have been in operation since <strong>2013</strong>. ProtonMail is based in Genève, <span class="flag-icon flag-icon-ch"></span> Switzerland. Accounts start with 500 MB storage with their free plan.</p>
 
-    <p>Free accounts have some limitations and do not allow the use of the <a href="https://protonmail.com/bridge">ProtonMail Bridge</a>, which is required to use a <a href="/software/email">recommended email client</a> (e.g. Thunderbird) or to search email by body text. Paid accounts are available starting at <strong>€48/y</strong> which include features like ProtonMail Bridge, additional storage, custom domain support, and more. The webmail and mobile apps can only search <code>To:</code>, <code>From:</code>, <code>Date:</code> and <code>Subject:</code> (this is likely to change when <a href="https://reddit.com/comments/cqwk2a/comment/ex21b4e">v4.0</a> of ProtonMail is released).</p>
+    <p>Free accounts have some limitations, such as not being able to search body text and not having access to <a href="https://protonmail.com/bridge">ProtonMail Bridge</a>, which is required to use a <a href="/software/email">recommended desktop email client</a> (e.g. Thunderbird). Paid accounts are available starting at <strong>€48/y</strong> which include features like ProtonMail Bridge, additional storage, and custom domain support.</p>
 
     <h5>{% include badge.html color="success" text="Domains and Aliases" %}</h5>
     <p>Paid ProtonMail users can use their own domain with the service. <a href="https://protonmail.com/support/knowledge-base/catch-all/">Catch-all</a> addresses are supported with custom domains for Professional and Visionary plans. ProtonMail also supports <a href="https://protonmail.com/support/knowledge-base/creating-aliases/">subaddressing</a>, which is useful for users who don't want to purchase a domain.</p>
@@ -37,7 +37,7 @@
     <p>ProtonMail has <a href="https://protonmail.com/support/knowledge-base/how-to-use-pgp">integrated OpenPGP encryption</a> in their webmail. Emails to other ProtonMail users are encrypted automatically, and encryption to non-ProtonMail users with an OpenPGP key can be enabled easily in your account settings. They also allow you to <a href="https://protonmail.com/support/knowledge-base/encrypt-for-outside-users">encrypt messages to non-ProtonMail users</a> without the need for them to sign up for a ProtonMail account or use software like OpenPGP.</p>
     <p>ProtonMail also supports the discovery of public keys via HTTP from their <a href="https://wiki.gnupg.org/WKD">Web Key Directory (WKD)</a>. This allows users outside of ProtonMail to find the OpenPGP keys of ProtonMail users easily, for cross-provider E2EE.</p>
 
-    <h5>{% include badge.html color="warning" text=".onion Service" %}</h5>
+    <h5>{% include badge.html color="info" text=".onion Service" %}</h5>
     <p>ProtonMail's login and services are accessible over Tor, <a href="https://protonmailrmez3lotccipshtkleegetolb73fuirgj7r4o4vfu7ozyd.onion/">protonmailrmez3lotccipshtkleegetolb73fuirgj7r4o4vfu7ozyd.onion</a></p>
 
     <h5>{% include badge.html color="info" text="Extra Functionality" %}</h5>