fix source code link to point to a real place

includes/signup.php

@@ -60,4 +60,4 @@ if ($success == "success2") {
 header("Location: $site_root/?page=$success");
 die();
 
-?>
+?>

wiki.php

@@ -82,7 +82,7 @@ print "		</div>
 
 echo $Parsedown->text($footer);
 
-print "	<a href=\"https://tildegit.org/thunix/www\">Site Source</a> | <a href=\"https://tildegit.org/thunix/www/src/branch/master/articles/$page.md\">Page Source</a>
+print "	<a href=\"https://tildeforge.dev/Thunix/www\">Site Source</a> | <a href=\"https://tildeforge.dev/Thunix/www/src/branch/master/articles/$page.md\">Page Source</a>
 	</div>
 <!-- End Footer -->