docs: fix typo and add additional info (#755)

* chore: fix typo

change adjective to verb

* chore: add info for pages with no js at all

* revert sveltekit:prefetch addition

Co-authored-by: Rich Harris <richard.a.harris@gmail.com>

documentation/docs/11-ssr-and-javascript.md

@@ -34,7 +34,7 @@ In certain circumstances you might need to disable this behaviour with the app-w
 </script>
 ```
 
-Note that this will disabling client-side routing for any navigation from this page, regardless of whether the router is already active.
+Note that this will disable client-side routing for any navigation from this page, regardless of whether the router is already active.
 
 ### hydrate