message: add bucket commands to docs
diff: @@ -146,3 +146,25 @@ Deletes all specified keys within a given namespace.
  $ wrangler kv:bulk delete f7b02e7fc70443149ac906dd81ec1791 ./allthethings.json
  ```
  +## `kv:bucket`
  +
  +### `upload`
  +
  +Walks the given directory and runs a bulk upload, using the path to an asset as its `key` and the asset as its `value`.
  +
  +#### Usage
  +
  +```sh
  +$ wrangler kv:bucket upload f7b02e7fc70443149ac906dd81ec1791 ./public
  +```
  +
  +### `delete`
  +
  +Walks the given directory and runs a bulk delete, using the paths to assets as the `key`s to delete.
  +
  +#### Usage
  +
  +```sh
  +$ wrangler kv:bucket upload f7b02e7fc70443149ac906dd81ec1791 ./public
  +```
  +
  