use templates instead of direct type

Author: naltatis

docs/tariffs.mdx

@@ -194,7 +194,8 @@ Dynamischer dänischer Stromtarif, dessen Gebühren sich über das Jahr hinweg (
 tariffs:
   currency: DKK
   grid:
-    type: energinet
+    type: template
+    template: energinet
     region: dk1
     charges: 0.81 
     tax: 0.25

i18n/en/docusaurus-plugin-content-docs/current/tariffs.mdx

@@ -194,7 +194,8 @@ Dynamic Danish electricity tariff, whose fees change throughout the year (summer
 tariffs:
   currency: DKK
   grid:
-   type: energinet
+    type: template
+    template: energinet
     region: dk1   # or dk2
     charges: 0.81 # my case
     tax: 0.25     # 25% VAT