Add 'ecommerce' to the vale ok'd list

Author: forstisabella

vale-styles/Vocab/Docs/accept.txt

@@ -3,6 +3,7 @@
 (?:C|c)rypto
 (?:D|d)eduplicate
 (?:D|d)eduplication
+(?:E|e)commerce
 (?:G|g)tag
 (?:K|k)laviyo
 (?:L|l)odash