Update _redirects

Author: sarah11918

public/_redirects

@@ -39,6 +39,9 @@
 /:lang/reference/experimental-flags/svg/				     /:lang/guides/images/
 /:lang/reference/experimental-flags/serialized-configuration/				 /:lang/reference/modules/astro-config/
 /:lang/reference/experimental-flags/responsive-images/				     /:lang/guides/images/
+/:lang/guides/deploy/sst/														/:lang/guides/deploy/aws-via-sst/
+/:lang/guides/deploy/flightcontrol/									/:lang/guides/deploy/aws-via-flightcontrol/
+
 
 
 # Very old docs site redirects