(DOCSP-15388) change data types to epoch_millis in 2 examples (#153)

Author: sarahsimpers

source/reference/examples/path-syntax-examples.txt

@@ -246,7 +246,7 @@ The following :ref:`datalake-databases-reference` object generates a field
            "dataSources" : [
              {
                "storeName" : "accountingArchive",
-               "path" : "/invoices/{invoiceDate epoch_secs}"
+               "path" : "/invoices/{invoiceDate epoch_millis}"
              }
            ]
          }
@@ -293,7 +293,7 @@ generates:
            "dataSources" : [
              {
                "storeName" : "accountingArchive",
-               "path" : "/invoices/{invoiceNumber string}-{invoiceDate date}"
+               "path" : "/invoices/{invoiceNumber string}-{invoiceDate epoch_millis}"
              }
            ]
          }