Update help text in management command for self-explanatory clarity.

Author: Soumyaditya25

…/management/commands/self-explanatory.py …nagement/commands/populate_challenges.pychallenge/management/commands/self-explanatory.py renamed to challenge/management/commands/populate_challenges.py challenge/management/commands/self-explanatory.py renamed to challenge/management/commands/populate_challenges.py

@@ -4,7 +4,11 @@
 from challenge.models import Challenge
 
 class Command(BaseCommand):
-    help = "Populate challenge data from challenge/challenge.json"
+    help = (
+        "Reads challenge data from 'challenge/challenge.json' and populates the "
+        "Challenge table in the database. Uses get_or_create to prevent duplicates "
+        "and handles JSON errors gracefully."
+    )
 
     def handle(self, *args, **options):
         file_path = os.path.join('challenge', 'challenge.json')