Update docs with new resource_matching behavior

[#172640608](https://www.pivotaltracker.com/story/show/172640608)

Author: MerricdeLauney

docs/v3/source/includes/resources/feature_flags/_flags.md.erb

@@ -6,7 +6,7 @@
 ["env_var_visibility", "true", "When enabled, all users can see their environment variables. When disabled, no users can see environment variables."],
 ["hide_marketplace_from_unauthenticated_users", "false", "When enabled, service offerings available in the marketplace will be hidden from unauthenticated users. When disabled, unauthenticated users will be able to see the service offerings available in the marketplace."],
 ["private_domain_creation", "true", "When enabled, an organization manager can create private domains for that organization. When disabled, only admin users can create private domains."],
-["resource_matching", "true", "When enabled, any user can create resource matches. When disabled, the <a href=\"#resource-matches\">resource match endpoint</a> always returns an empty array of matches."],
+["resource_matching", "true", "When enabled, any user can create resource matches. When disabled, the <a href=\"#resource-matches\">resource match endpoint</a> always returns an empty array of matches. The <a href=\"#upload-package-bits\">package upload endpoint</a> will not cache any uploaded packages for resource matching."],
 ["route_creation", "true", "When enabled, a space developer can create routes in a space. When disabled, only admin users can create routes."],
 ["service_instance_creation", "true", "When enabled, a space developer can create service instances in a space. When disabled, only admin users can create service instances."],
 ["service_instance_sharing", "false", "When enabled, Space Developers can share service instances between two spaces (even across orgs!) in which they have the Space Developer role. When disabled, Space Developers cannot share service instances between two spaces."],