Fix missing JSON syntax highlighting

protobuf-github-bot · copybara-github · commit 9daec2650d7c · 2026-04-21T13:28:08.000-07:00
One example was syntax highlighted and the other wasn't.

PiperOrigin-RevId: 903396193
diff --git a/content/programming-guides/json.md b/content/programming-guides/json.md
@@ -395,7 +395,7 @@ For example, a `google.protobuf.Duration` that represents 3.1 seconds will be
 represented by the string `"3.1s"` in the special case handling. When that
 `Duration` is packed into an `Any` it will be serialized as:
 
-```
+```json
 {
   "@type": "type.googleapis.com/google.protobuf.Duration",
   "value": "3.1s"

Original file line number	Diff line number	Diff line change
@@ -395,7 +395,7 @@ For example, a `google.protobuf.Duration` that represents 3.1 seconds will be
`395`	`395`	represented by the string `"3.1s"` in the special case handling. When that
`396`	`396`	`Duration` is packed into an `Any` it will be serialized as:
`397`	`397`
`398`		-```
	`398`	+```json
`399`	`399`	`{`
`400`	`400`	`"@type": "type.googleapis.com/google.protobuf.Duration",`
`401`	`401`	`"value": "3.1s"`