fix button names and headers

Signed-off-by: Jakub Sokołowski <jakub@status.im>

src/about-us.html

@@ -261,7 +261,7 @@
 <div id="mc_embed_signup">
 <form action="https://status.us20.list-manage.com/subscribe/post?u=774518184e8661075f1b012f5&amp;id=5e210065ef" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate>
     <div id="mc_embed_signup_scroll">
-  <h2>We need some informationen</h2>
+  <h2>Pre-Order</h2>
 <div class="indicates-required"><span class="asterisk">*</span> indicates required</div>
 <div class="mc-field-group">
   <label for="mce-EMAIL">Email Address  <span class="asterisk">*</span>

src/index.html

@@ -432,7 +432,7 @@
     <div class="response" id="mce-success-response" style="display:none"></div>
   </div>    <!-- 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_774518184e8661075f1b012f5_5e210065ef" tabindex="-1" value=""></div>
-    <div class="clear"><input type="submit" value="Submit" name="subscribe" id="mc-embedded-subscribe" class="a-button"></div>
+    <div class="clear"><input type="submit" value="Submit" name="Submit" id="mc-embedded-subscribe" class="a-button"></div>
     </div>
 </form>
 </div>