adding donation page and adding def ref links

pages/donate.md

@@ -27,11 +27,22 @@ We have had over 100+ donations in the two years before launching this website i
 
 The options below are through {B/qKC}'s fiscal sponsor, The Field. Your donation through this organization will be registered as tax-deductible. 
 
-*Please contact us for more donation options.*
+<div style="position: relative; width: 100%; max-width: 700px; margin: 0 auto;">
+  <iframe 
+    src="https://app.thefield.org/home/donation/general/650187/0" 
+    width="100%" 
+    height="900" 
+    frameborder="0"
+    scrolling="yes"
+    style="width: 100%; min-height: 900px; border: none;">
+  </iframe>
+</div>
+
+*We are also able to accept checks. Please [contact us](/contact) for more information or donation options.*
 
 <div style="text-align: center; margin: 2rem 0;">
   {% include feature/button.html 
-     text="Donate to us" 
+     text="Visit the site directly" 
      link="https://app.thefield.org/home/donation/general/650187/0"
      color="success" %}
 </div>