[trivial] Standardized comments in the example JSON

examples/patient_base.1.json

@@ -1,5 +1,5 @@
 {
-	"//comment": "A common patient: Insured, with contact info.",
+	"_comment": "A common patient: Insured, with contact info.",
 	"bsn": 123451111,
 	"name": {
 		"firstname": "Marie Antoinette",
@@ -31,7 +31,7 @@
 	},
 	"insurance": {
 		"policy_number": "123456789012345",
-		"uzovi": 3331
+		"uzovi": 101
 	},
 	"patid": 1234,
 	"pat_unid": "1234",

examples/patient_base.2.json

@@ -1,5 +1,5 @@
 {
-	"//comment": "Fairly minimal patient. Not insured, no contact info, no first name, no address info, etc.",
+	"_comment": "Fairly minimal patient. Not insured, no contact info, no first name, no address info, etc.",
 	"bsn": 123451112,
 	"name": {
 		"firstname": "J.J.",

examples/patient_base.3.json

@@ -1,5 +1,5 @@
 {
-	"//comment": "Patient that has passed away",
+	"_comment": "Patient that has passed away",
 	"bsn": 123451113,
 	"name": {
 		"firstname": "Abe",