fix: typo

Author: p-stam001

src/content/docs/developer-tools/sdks/backend/remix-sdk.mdx

@@ -458,7 +458,7 @@ export const loader = async ({ request }: LoaderFunctionArgs) => {
 
 If `org_code` is not specified and the user belongs to multiple organizations, they’ll be prompted to choose during login/registration.
 
-## Self Serve Portal
+## Self-Serve Portal
 
 Send users to the self-serve portal by linking to the portal URL returned from the [Self-serve portal API](/build/self-service-portal/self-serve-portal-for-orgs/) or by using a stored URL in your app.