You can write your code in a codeblock by typing it between the codeblock delimiters:
Note that these are backticks, not apostrophes

```js :arrow_left:

ServerEvents.recipes(event => {
event.smelting('minecraft:glass', '#forge:sand').xp(.1)
})

``` :arrow_left:

This example will look like this:

ServerEvents.recipes(event => {
  event.smelting('minecraft:glass', '#forge:sand').xp(.1)
})