Merge pull request #2272 from wilzbach/opencollective-smile

Add OpenCollective + Smile donation buttons

Author: wilzbach

foundation/donate.dd

@@ -30,6 +30,18 @@ $(H3 How can I donate?)
 
 We $(LINK2 sponsors.html, welcome contributions) from both organizations and individuals. Your help is highly appreciated.
 
+$(DONATE_ITEM Donate through OpenCollective, users,
+
+    Make a $(I transparent) donation and select the package you're comfortable.
+    You can leave notes to tell us what you think of our work or what's important to you.
+    $(BR) $(BR)
+
+<a href="https://opencollective.com/dlang/donate" target="_blank">
+  <img src="https://opencollective.com/dlang/donate/button@2x.png?color=blue" width=250 />
+</a>
+
+)
+
 $(DONATE_ITEM Donate through PayPal, paypal,
 
     Click the PayPal button to make a donation to the D Language Foundation via PayPal:
@@ -51,6 +63,12 @@ $(DONATE_ITEM Electronic wire transfers or bank check, money,
     Wire transfer information will be announced soon. In the meantime please use PayPal or $(LINK2 mailto:foundation@dlang.org, contact the D Language Foundation).
 )
 
+$(DONATE_ITEM smile.amazon.com, shopping-cart,
+    Visit $(LINK2 https://smile.amazon.com, smile.amazon.com) and select the D
+    Language Foundation as your charity. We'll receive a small percentage
+    of every purchase you make through smile.amazon.com (not www.amazon.com or the mobile app).
+)
+
 $(H3 If I donate financially, where do my donations go?)
 
 $(P The D Languages Foundation awards $(LINK2 http://dlang.org/blog/2016/12/05/the-d-language-foundations-scholarship-program, scholarships) to highly skilled students.