Update PayPal account for Zwiebelfreunde

We now have our own PayPal account linked to our own bank account.

wiki/src/contribute/how/donate.mdwn

@@ -72,7 +72,7 @@ automatically converts it to your local currency.
 
 <form action="https://www.paypal.com/cgi-bin/webscr" method="post" target='_blank' class='donation'>
 	<input type="hidden" name="cmd" value="_xclick-subscriptions"/>
-	<input type="hidden" name="business" value="donate@torservers.net"/>
+	<input type="hidden" name="business" value="tails@torservers.net"/>
 	<input type="hidden" name="item_name" value="Tails recurring donation"/>
 	<input type="hidden" name="no_note" value="1"/>
 	<input type="hidden" name="src" value="1"/>
@@ -123,7 +123,7 @@ automatically converts it to your local currency.
 
 <form action='https://www.paypal.com/cgi-bin/webscr' id='paypalForm' method='post' target='_blank' class='donation'>
 	<input name='cmd' type='hidden' value='_donations' />
-	<input name='business' type='hidden' value='donate@torservers.net' />
+	<input name='business' type='hidden' value='tails@torservers.net' />
 	<input name='item_name' type='hidden' value='Tails one-time donation' />
 	<input type="hidden" name="no_shipping" value="1"/>
 	<input name="lc" type="hidden" value="US" />