Add index strings to en.yml

_includes/sections/quotes.html

@@ -1,5 +1,5 @@
 <div class="page-header">
-  <h1>Privacy? I don't have anything to hide.</h1>
+  <h1>{% t quotes.header %}</h1>
 </div>
 <blockquote class="blockquote">
   <p><a href="https://www.ted.com/talks/glenn_greenwald_why_privacy_matters" title="Glenn Greenwald - Why privacy matters - TED Talk"><img src="/assets/img/layout/Glenn-Greenwald-Why-privacy-matters.jpg" width="177" height="200" class="img-fluid float-right ml-2" alt="Glenn Greenwald: Why privacy matters"></a>
@@ -14,7 +14,7 @@
    <footer class="blockquote-footer">Joshua in <cite title="The Crypto Paper"><a href="https://github.com/cryptoseb/CryptoPaper#let-me-explain-further">The Crypto Paper</a></cite></footer>
 </blockquote>
 
-<h4>Read also:</h4>
+<h4>{% t global.further_reading %}</h4>
 
 <ul>
   <li><a href="https://en.wikipedia.org/wiki/Nothing_to_hide_argument">Nothing to hide argument (Wikipedia)</a></li>
@@ -22,7 +22,7 @@
   <li><a href="https://papers.ssrn.com/sol3/papers.cfm?abstract_id=998565">'I've Got Nothing to Hide' and Other Misunderstandings of Privacy (Daniel J. Solove - San Diego Law Review)</a></li>
 </ul>
 
-<h1 id="quotes" class="anchor"><a href="#quotes"><i class="fas fa-link anchor-icon"></i></a> Quotes</h1>
+<h1 id="quotes" class="anchor"><a href="#quotes"><i class="fas fa-link anchor-icon"></i></a> {% t quotes.quotes %}</h1>
 
 <blockquote class="blockquote">
   <p>Arguing that you don't care about the right to privacy because you have nothing to hide is no different than saying you don't care about free speech because you have nothing to say.</p>