readme: update reference to Ansible Collection

[sean-freeman]

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New or Affected Resource(s) or Datasource(s)

• README.md

Description

Current content is inaccurate/outdated, and does not belong in this repository. It is misleading.

Current content

# IBM Cloud Ansible Modules

An implementation of generated Ansible modules using the
[IBM Cloud Terraform Provider].
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### Example Projects

1. [VPC Virtual Server Instance](examples/ansible/examples/simple-vm-ssh/)

2. [Power Virtual Server Instance](examples/ansible/examples/simple-vm-power-vs/)

Proposed content

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## Related projects

### Ansible Collection for IBM Cloud

An Ansible Collection package contains many Ansible Modules,
each Ansible Module is a wrapper around resource or data source
elements of the **Terraform Provider for IBM Cloud**.
At each execution of an Ansible Module, on-the-fly Terraform
code is generated and executed for the intended outcome.

Compatible with Ansible Core 2.12+, various
[example Ansible Playbooks](https://github.com/IBM-Cloud/ansible-collection-ibm#example-ansible-playbooks)
are provided to show how to use
the Ansible Modules from the Ansible Collection for IBM Cloud.

See more information on the package index entry
[ibm.cloudcollection Ansible Collection - Ansible Galaxy](https://galaxy.ansible.com/ui/repo/published/ibm/cloudcollection).