Add an orb to a registry category

## Usage

`circleci orb add-to-category <namespace>/<orb> <category> [flags]`

## Arguments

- `<namespace>/<orb>` is the orb to add, for example, `namespace/orb-name`.
- `<category>` is the registry category name, for example, `Testing`.

## Flags

Global flags: `-c, --config`, `--debug`, `--no-color`, `-q, --quiet` — see `circleci --help`.

## Examples

- Add an orb to the Testing category: 
  `circleci orb add-to-category myorg/my-orb "Testing"`
- Add an orb to the Deployment category: 
  `circleci orb add-to-category myorg/my-orb "Deployment"`
- List available categories first: 
  `circleci orb list-categories`

## Details

Add an orb to an orb registry category.

Categories help users discover orbs. Use 'circleci orb list-categories'
to see available categories.

