[yamllint] fix some warning issues reported by yamllint

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

searx/settings.yml

@@ -1384,7 +1384,8 @@ engines:
     engine: json_engine
     paging: true
     # This API Token is needed to work
-    search_url: https://search.whaleslide.com/api/v1/search_v2/web/{pageno}?q={query}&api_token=f8OhUDEYKUICHDnIxEgI7Cb4uYyTBqT4nO8iueNbfTO3devS24yElGqM7nCm
+    search_url:
+      https://search.whaleslide.com/api/v1/search_v2/web/{pageno}?q={query}&api_token=f8OhUDEYKUICHDnIxEgI7Cb4uYyTBqT4nO8iueNbfTO3devS24yElGqM7nCm
     url_query: url
     title_query: title
     title_html_to_text: true
@@ -1394,7 +1395,7 @@ engines:
     disabled: true
     about:
       website: https://whaleslide.com/
-      wikidata_id: # No Wikidata page
+      wikidata_id:  # No Wikidata page
       official_api_documentation: false
       use_official_api: false
       require_api_key: false
@@ -1489,7 +1490,7 @@ engines:
     title_xpath: //div[@class="upper-synonyms"]/a
     about:
       website: https://www.woxikon.de/
-      wikidata_id: # No Wikidata ID
+      wikidata_id:  # No Wikidata ID
       use_official_api: false
       require_api_key: false
       results: HTML