chore: update start_urls tmpl && clean up templates

ayugespidertools/templates/spiders/xmlfeed.tmpl

@@ -4,7 +4,7 @@ from scrapy.spiders import XMLFeedSpider
 class $classname(XMLFeedSpider):
     name = "$name"
     allowed_domains = ["$domain"]
-    start_urls = ["http://$domain/feed.xml"]
+    start_urls = ["$url"]
     iterator = "iternodes"  # you can change this; see the docs
     itertag = "item"  # change it accordingly