docs: fix runtime-warnings page (sveltejs#14077)

* fix runtime-warnings page

* fix

Author: Rich-Harris

documentation/docs/98-reference/30-runtime-warnings.md

@@ -2,10 +2,10 @@
 title: 'Runtime warnings'
 ---
 
-## Client errors
+## Client warnings
 
-@include .generated/client-errors.md
+@include .generated/client-warnings.md
 
-## Shared errors
+## Shared warnings
 
-@include .generated/shared-errors.md
+@include .generated/shared-warnings.md