docs: note that the prerenderer can't crawl pages that have SSR disab…

…led (#12226)

Co-authored-by: Ben McCann <322311+benmccann@users.noreply.github.com>

documentation/docs/20-core-concepts/40-page-options.md

@@ -76,11 +76,12 @@ For _pages_, we skirt around this problem by writing `foo/index.html` instead of
 
 ### Troubleshooting
 
-If you encounter an error like 'The following routes were marked as prerenderable, but were not prerendered' it's because the route in question (or a parent layout, if it's a page) has `export const prerender = true` but the page wasn't actually prerendered, because it wasn't reached by the prerendering crawler.
+If you encounter an error like 'The following routes were marked as prerenderable, but were not prerendered' it's because the route in question (or a parent layout, if it's a page) has `export const prerender = true` but the page wasn't reached by the prerendering crawler and thus wasn't prerendered.
 
-Since these routes cannot be dynamically server-rendered, this will cause errors when people try to access the route in question. There are two ways to fix it:
+Since these routes cannot be dynamically server-rendered, this will cause errors when people try to access the route in question. There are a few ways to fix it:
 
 * Ensure that SvelteKit can find the route by following links from [`config.kit.prerender.entries`](configuration#prerender) or the [`entries`](#entries) page option. Add links to dynamic routes (i.e. pages with `[parameters]` ) to this option if they are not found through crawling the other entry points, else they are not prerendered because SvelteKit doesn't know what value the parameters should have. Pages not marked as prerenderable will be ignored and their links to other pages will not be crawled, even if some of them would be prerenderable.
+* Ensure that SvelteKit can find the route by discovering a link to it from one of your other prerendered pages that have server-side rendering enabled.
 * Change `export const prerender = true` to `export const prerender = 'auto'`. Routes with `'auto'` can be dynamically server rendered
 
 ## entries