Add configuration fieled 'gitLastCommitDate'

Author: VelinovAngel

docs-builder.yml

@@ -19,6 +19,7 @@ table-layout: fixed
 enable-tabbed-code-blocks: true
 blazor-repl: true
 pdf-cover-png-path: ./images/pdf-cover.png
+gitLastCommitDateEnabled: true
 
 demos:
   metaFileName: demo.json