What content needs to be created or modified?
There should be documentation for the new bindings component implementation for the Huawei OBS.

Describe the solution you'd like
Provide a complete user guide for setting up Dapr bindings component for the Huawei OBS and its usage.

Where should the new material be placed?
daprdocs/content/en/reference/components-reference/supported-bindings

The associated pull request from dapr/dapr, dapr/components-contrib, or other Dapr code repos
component-contrib PR: #1724
Docs PR: #2447

Additional context
N/A