Suggest not using the word "outroing"

I've rewritten a sentence to avoid using the word "outroing". I came here thinking it was a typo of "outgoing", but discovered it is a term used internally with Svelte. I think the term is confusing and does not help people to learn Svelte.

Thanks!

site/content/docs/02-template-syntax.md

@@ -795,7 +795,7 @@ transition = (node: HTMLElement, params: any) => {
 
 A transition is triggered by an element entering or leaving the DOM as a result of a state change.
 
-Elements inside an *outroing* block are kept in the DOM until all current transitions have completed.
+When a block is transitioning out, elements inside the block are kept in the DOM until all current transitions have completed.
 
 The `transition:` directive indicates a *bidirectional* transition, which means it can be smoothly reversed while the transition is in progress.