site/content: regenerate terms

This is based on the new cluster/module re-organization by Peter
last week: idss_schema_fields_new2.xlsx

site/content/terms/global-standard-effective-date/index.md

@@ -0,0 +1,11 @@
+---
+title: 'Standard effective date'
+field: 'dcterms.valid'
+slug: 'global-standard-effective-date'
+description: 'Effective date of a code/standard or other resource.'
+comment: 'yyyy-mm-dd'
+required: False
+module: 'Status'
+cluster: 'Global'
+policy: 'Date. Single value only.'
+---