Re-render.

Signed-off-by: Daira-Emma Hopwood <daira@jacaranda.org>

README.rst

@@ -26,7 +26,11 @@ to talk about your idea.
 Participation in the Zcash project is subject to a `Code of
 Conduct <https://github.com/zcash/zcash/blob/master/code_of_conduct.md>`__.
 
-The Zcash protocol is documented in its `Protocol Specification <rendered/protocol/protocol.pdf>`__.
+.. raw:: html
+
+    <p>The Zcash protocol is documented in its
+    <span class="lightmode"><a href="https://zips.z.cash/protocol/protocol.pdf">Protocol Specification</a></span><span
+          class="darkmode" style="display: none;"><a href="https://zips.z.cash/protocol/protocol-dark.pdf">Protocol Specification</a></span>.</p>
 
 To start contributing, first read `ZIP 0 <zips/zip-0000.rst>`__ which documents the ZIP process.
 Then clone `this repo <https://github.com/zcash/zips>`__ from GitHub, and start adding

rendered/index.html

@@ -20,7 +20,9 @@
             <p>The authors of a ZIP are responsible for building consensus within the community and documenting / addressing dissenting opinions.</p>
             <p>Anyone can write a ZIP! We encourage community contributions and decentralization of work on the Zcash protocol. If you’d like to bounce ideas off people before formally writing a ZIP, we encourage it! Visit the <a href="https://discord.gg/kdjfvps">ZcashCommunity Discord chat</a> to talk about your idea.</p>
             <p>Participation in the Zcash project is subject to a <a href="https://github.com/zcash/zcash/blob/master/code_of_conduct.md">Code of Conduct</a>.</p>
-            <p>The Zcash protocol is documented in its <a href="protocol/protocol.pdf">Protocol Specification</a>.</p>
+        <p>The Zcash protocol is documented in its
+<span class="lightmode"><a href="https://zips.z.cash/protocol/protocol.pdf">Protocol Specification</a></span><span
+      class="darkmode" style="display: none;"><a href="https://zips.z.cash/protocol/protocol-dark.pdf">Protocol Specification</a></span>.</p>
             <p>To start contributing, first read <a href="zip-0000">ZIP 0</a> which documents the ZIP process. Then clone <a href="https://github.com/zcash/zips">this repo</a> from GitHub, and start adding your draft ZIP, formatted either as reStructuredText or as Markdown, into the <cite>zips/</cite> directory.</p>
             <p>For example, if using reStructuredText, use a filename matching <code>zips/draft-*.rst</code>. Use <code>make</code> to check that you are using correct <a href="https://docutils.sourceforge.io/rst.html">reStructuredText</a> or <a href="https://pandoc.org/MANUAL.html#pandocs-markdown">Markdown</a> syntax, and double-check the generated <code>rendered/draft-*.html</code> file before filing a Pull Request. See <a href="protocol/README">here</a> for the project dependencies.</p>
         </section>