Add email subscription form to / and /newsletters

Author: jamesob

_includes/newsletter-signup.html

@@ -0,0 +1,20 @@
+<!-- Begin MailChimp Signup Form -->
+<link href="//cdn-images.mailchimp.com/embedcode/slim-10_7.css" rel="stylesheet" type="text/css">
+<style type="text/css">
+	#mc_embed_signup{clear:left; font:14px Helvetica,Arial,sans-serif; }
+	/* Add your own MailChimp form style overrides in your site stylesheet or in this style block.
+	   We recommend moving this block and the preceding CSS link to the HEAD of your HTML file. */
+</style>
+<div id="mc_embed_signup">
+<form action="https://bitcoinops.us18.list-manage.com/subscribe/post?u=70c3f85e5d13ffec674f30af8&amp;id=adc93c9774" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate>
+    <div id="mc_embed_signup_scroll">
+	<label for="mce-EMAIL">Subscribe to our newsletter</label>
+	<input type="email" value="" name="EMAIL" class="email" id="mce-EMAIL" placeholder="email address" required>
+    <!-- real people should not fill this in and expect good things - do not remove this or risk form bot signups-->
+    <div style="position: absolute; left: -5000px;" aria-hidden="true"><input type="text" name="b_70c3f85e5d13ffec674f30af8_adc93c9774" tabindex="-1" value=""></div>
+    <div class="clear"><input type="submit" value="Subscribe" name="subscribe" id="mc-embedded-subscribe" class="button"></div>
+    </div>
+</form>
+</div>
+
+<!--End mc_embed_signup-->

index.md

@@ -24,4 +24,7 @@ Optech does not exist to make a profit, and all materials and documentation
 produced are placed in the public domain. We are supported by our generous
 founding sponsors and contributions from member companies.
 
+
+{% include newsletter-signup.html %}
+
 {% include sponsors.html %}

newsletters.md

@@ -9,6 +9,8 @@ share: false
 version: 1
 ---
 
+{% include newsletter-signup.html %}
+
 <ul class="post-list">
   {%- for post in site.posts -%}
   {%- if post.type == 'newsletter' -%}