doc: update README to align with the new brand name (#750)

Resolve #715

---------

Signed-off-by: Feynman Zhou <[email protected]>

README.md

@@ -4,35 +4,42 @@
 [![codecov](https://codecov.io/gh/notaryproject/notation/branch/main/graph/badge.svg)](https://codecov.io/gh/notaryproject/notation)
 [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/notaryproject/notation/badge)](https://api.securityscorecards.dev/projects/github.com/notaryproject/notation)
 
-Notation is a CLI project to add signatures as standard items in the registry ecosystem, and to build a set of simple tooling for signing and verifying these signatures. This should be viewed as similar security to checking git commit signatures, although the signatures are generic and can be used for additional purposes. Notation is an implementation of the [Notary project specifications][notaryv2-specs].
+Notation is a CLI project to add signatures as standard items in the OCI registry ecosystem, and to build a set of simple tooling for signing and verifying these signatures. This should be viewed as similar security to checking git commit signatures, although the signatures are generic and can be used for additional purposes. Notation is an implementation of the [Notary Project specifications][notaryproject-specs].
 
-> **Note** The documentation for using `notation` is available [here](https://notaryproject.dev/docs/).
+You can find the Notary Project [README](https://github.com/notaryproject/.github/blob/main/README.md) to learn about the overall Notary Project.
+
+> [!NOTE]
+> The documentation for installing Notation CLI is available [here](https://notaryproject.dev/docs/installation/cli/).
 
 ## Table of Contents
 
-  - [Documents](#documents)
+  - [Quick Start](#quick-start)
   - [Community](#community)
     - [Development and Contributing](#development-and-contributing)
-    - [Notary project Community Meeting](#notary-project-community-meeting)
+    - [Notary Project Community Meeting](#notary-project-community-meeting)
   - [Release Management](#release-management)
   - [Support](#support)
   - [Code of Conduct](#code-of-conduct)
   - [License](#license)
 
-## Documents
+## Quick Start
 
 - [Quick start: Sign and validate a container image](https://notaryproject.dev/docs/quickstart/)
+- [Try Notation on an online playground](https://killercoda.com/notaryproject/scenario/notation)
 - Build, sign, and verify container images using Notation with [Azure Key Vault](https://docs.microsoft.com/azure/container-registry/container-registry-tutorial-sign-build-push?wt.mc_id=azurelearn_inproduct_oss_notaryproject) or [AWS Signer](https://docs.aws.amazon.com/signer/latest/developerguide/container-workflow.html)
+
 ## Community
 
+Notary Project is a [CNCF Incubating project](https://www.cncf.io/projects/notary/). We :heart: your contribution.
+
 ### Development and Contributing
 
 - [Build Notation from source code](/building.md)
-- [Governance for Notation](https://github.com/notaryproject/.github/blob/master/GOVERNANCE.md)
+- [Governance for Notary Project](https://github.com/notaryproject/.github/blob/master/GOVERNANCE.md)
 - [Maintainers and reviewers list](https://github.com/notaryproject/notation/blob/main/CODEOWNERS)
-- Regular conversations for Notation occur on the [Cloud Native Computing Slack](https://slack.cncf.io/) **notary-project** channel.
+- Regular conversations for Notary Project occur on the [Cloud Native Computing Slack](https://slack.cncf.io/) **notary-project** channel.
 
-### Notary project Community Meeting
+### Notary Project Community Meeting
 
 - Mondays 5-6 PM PDT, 4-5 PM PST, 8-9 PM EDT, 7-8 PM EST, 8-9 AM Shanghai
 - Thursdays 9-10 AM PDT, 8-9 AM PST, 12 PM EDT, 11 AM EST, 5 PM UK
@@ -56,6 +63,6 @@ This project has adopted the [CNCF Code of Conduct](https://github.com/cncf/foun
 This project is covered under the Apache 2.0 license. You can read the license [here](LICENSE).
 
 [notation-releases]:      https://github.com/notaryproject/notation/releases
-[notaryv2-specs]:         https://github.com/notaryproject/notaryproject
+[notaryproject-specs]:         https://github.com/notaryproject/notaryproject
 [artifact-manifest]:      https://github.com/oras-project/artifacts-spec/blob/main/artifact-manifest.md
 [cncf-distribution]:      https://github.com/oras-project/distribution