Correct language on org page to say and localize it

app/views/nonprofits/show.html.erb

@@ -90,7 +90,7 @@
 		<%= render 'contact' %>
 
 		<div class='pastelBox--grey'>
-			<header>Promote this nonprofit</header>
+			<header><%= t("organization_page.promote") %></header>
 			<div class='pastelBox-body'>
 				<%= render 'common/social_buttons' %>
 			</div>

config/locales/en.yml

@@ -10,6 +10,8 @@ en:
         body: 'Comment content'
   organization:
     name: "Organisation"
+  organization_page:
+    promote: "Promote this organization"
   donation:
    amount: "Total Amount"
    date: "Transaction Date"