[docs] rename 'Recoll' to 'Recoll Engine'

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

docs/admin/engines/recoll.rst

@@ -1,17 +1,17 @@
 .. _engine recoll:
 
-======
-Recoll
-======
+=============
+Recoll Engine
+=============
 
 .. sidebar:: info
 
    - `Recoll <https://www.lesbonscomptes.com/recoll/>`_
    - `recoll-webui <https://framagit.org/medoc92/recollwebui.git>`_
+   - :origin:`searx/engines/recoll.py`
 
-Recoll_ is a desktop full-text search tool based on Xapian. By itself Recoll_
-does not offer web or API access, this can be achieved using recoll-webui_
-
+Recoll_ is a desktop full-text search tool based on Xapian.  By itself Recoll_
+does not offer WEB or API access, this can be achieved using recoll-webui_
 
 
 Configuration