Documented passing list or dict instead of config file in hgwebdir.cgi

hgwebdir.cgi

@@ -13,5 +13,8 b' from mercurial import hgweb'
 # virtual/path = /real/path
 # virtual/path = /real/path
 
+# Alternatively you can pass a list of ('virtual/path', '/real/path') tuples
+# or use a dictionary with entries like 'virtual/path': '/real/path'
+
 h = hgweb.hgwebdir("hgweb.config")
 h.run()