Fix README

README.md

@@ -106,7 +106,7 @@ Aside from the usual Django commands, some custom commands are available via `ma
 * `from_csv`: Import manifests and index files from a CSV list;
 * `import_annotations`: Import index files from a folder into a specific volume;
 * `import_acts`: Import XML surface files and CSV act files;
-* `delete_corpus`: Delete a big corpus using a Ponos task;
+* `delete_corpus`: Delete a big corpus using an RQ task;
 * `reindex`: Reindex elements into Solr;
 * `telegraf`: A special command with InfluxDB-compatible output for Grafana statistics.
 * `move_lines_to_parents`: Moves element children to their geographical parents;