Delete basic-features.mdx and create redirect

Author: RebeccaTamachiro

public/_redirects

@@ -407,6 +407,7 @@
 /fundamentals/account-and-billing/account-setup/account-roles/ /fundamentals/setup/manage-members/roles/ 301
 /fundamentals/account-and-billing/account-setup/manage-account-members/ /fundamentals/setup/manage-members/ 301
 /fundamentals/account-and-billing/members/roles/ /fundamentals/setup/manage-members/roles/ 301
+/fundamentals/basic-tasks/basic-features/ /fundamentals/basic-tasks/ 301
 /fundamentals/get-started/cdn/ /fundamentals/concepts/how-cloudflare-works/ 301
 /fundamentals/get-started/how-cloudflare-works/ /fundamentals/concepts/how-cloudflare-works/ 301
 /fundamentals/get-started/cloudflare-cookies/ /fundamentals/reference/policies-compliances/cloudflare-cookies/ 301