What content needs to be created or modified?
Docs on new feature for configuring middleware within component

Where should the new material be placed?

• Make new node called "Middleware" and place this doc under that node
• Update configure middleware to reflect the changes
• Add the priority field to the middleware component specs

The associated pull request from dapr/dapr, dapr/components-contrib, or other Dapr code repos
dapr/dapr#7299