fix: mermaid rendering broken after rehype-pretty-code bump (closes #638)

Jacky Zhao

2023-12-19 443cd53a1acf33ac0aaa34e0e75760d3da912d18

 docs/features/explorer.md

@@ -196,7 +196,7 @@
      }
    }
  },
}})
})
```

### Putting it all together