added crawl manager description

hcf_backend/utils/crawlmanager.py

@@ -2,6 +2,7 @@
 Script for easy managing of consumer spiders from multiple slots. It checks available slots and schedules
 a job for each one.
 """
+
 import re
 import json
 import random
@@ -29,6 +30,10 @@ def add_argparser_options(self):
         self.argparser.add_argument('frontier', help='Frontier name')
         self.argparser.add_argument('prefix', help='Slot prefix')
 
+    @property
+    def description(self):
+        return __doc__
+
     def workflow_loop(self):
         slot_re = re.compile(rf"{self.args.prefix}\d+")
         available_slots = set(slot for slot in self.hcfpal.get_slots(self.args.frontier) if slot_re.match(slot))