Lead users to ckb-ecofund/ccc

[Keith-CY]

Is your feature request related to a problem? Please describe.

CCC(https://github.com/ckb-ecofund/ccc) is the latest and recommended JavaScript SDK in the CKB ecosystem. Therefore, it's important to prominently remind users to choose CCC as their primary development tool.

Describe the solution you'd like

Add an annotation in the readme for this and highlight a link to CCC

[Keith-CY]

For reference

## Recommended SDK: CCC

It’s highly recommended to use the [CCC SDK](https://github.com/ckb-ecofund/ccc) as your primary development tool within the CKB ecosystem. [CCC](https://github.com/ckb-ecofund/ccc) is the latest and most robust JavaScript SDK designed to streamline and enhance your development process. By choosing [CCC](https://github.com/ckb-ecofund/ccc), you'll be leveraging the best practices and most up-to-date features available for CKB development.

To get started with [CCC](https://github.com/ckb-ecofund/ccc), follow the [installation guide](https://github.com/ckb-ecofund/ccc#installing) and explore the [documentation](https://docs.ckbccc.com/) to integrate it seamlessly into your projects.

[Keith-CY]

How is it going?