_config.yml in jekyll-geolexica-1.2.0 vs _config.yml in jekyll-geolexica-1.2.1

@@ -54,9 +54,10 @@
     output: true
     output_ext: .yaml
 
 geolexica:
   concepts_glob: "./geolexica-database/concepts/*.yaml"
+  concept_date_format: "%F"
   term_languages:
     - eng
   formats:
     - html