Fix typo in reindex command

arkindex/documents/management/commands/reindex.py

@@ -43,7 +43,7 @@ class Command(BaseCommand):
             if not corpora.exists():
                 raise CommandError(f"Corpus {corpus_id} does not exist or is not indexable")
         else:
-            raise CommandError("Either spcify a corpus ID with --corpus-id or index all corpus through --all")
+            raise CommandError("Either specify a corpus ID with --corpus-id or index all corpus through --all")
 
         for corpus in corpora:
             self.stdout.write(f"Indexing {corpus.name}")