subscription_mailer.html.erb in proclaim-0.2.2

- old
+ new

@@ -1,8 +1,8 @@
 <!DOCTYPE html>
 <html>
 	<head>
-		<meta content='text/html; charset=UTF-8' http-equiv='Content-Type' />
+		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 
 		<style>
 			* {
 				box-sizing: border-box;
 			}