chore(cloudflare): Fix missing word in SvelteKit instruction (#12894)

Author: Lms24

docs/platforms/javascript/guides/cloudflare/frameworks/sveltekit.mdx

@@ -17,7 +17,7 @@ If the setup through the wizard doesn't work for you, you can also [set up the S
 
 <Alert>
 
-If installed the SDK before, make sure that `@sentry/sveltekit` version `9.2.0` or newer is installed.
+If you installed the SDK before, make sure that `@sentry/sveltekit` version `9.2.0` or newer is installed.
 
 </Alert>