Fix: Whoosh search - Remove old keyword

pages/page.py

     def is_available(self):
         is_a = os.path.isfile(self.filename)
         if not is_a:
-            logger.info("page.is_available: Not available - %s", self.filename)
+            logger.debug("page.is_available: Not available - %s", self.filename)
         return is_a
 
     @property

pages/search.py

     )
     with ix.writer() as w:
         logger.info('Adding document with id=%s to the search index.', data.get('id'))
-        w.add_document(**data)
+        w.update_document(**data)
         for key in data:
             logger.debug('  - Adding %s=%s', key, repr(data[key]))