pretty render of JSON snippets
When including a JSON snippet with:
```json { ... "updated": "1985-04-12T23:20:50.52Z", ... } ```
it shows the following error.
WARNING: Could not lex literal_block as "json". Highlighting skipped.
When including a JSON snippet with:
```json { ... "updated": "1985-04-12T23:20:50.52Z", ... } ```
it shows the following error.
WARNING: Could not lex literal_block as "json". Highlighting skipped.