chore: edit README to announce new release (#513)

**Reason for Change**:
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**Requirements**

- [ ] added unit tests and e2e tests (if applicable).

**Issue Fixed**:
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line. -->

**Notes for Reviewers**:

README.md

@@ -7,7 +7,7 @@
 
 | ![notification](docs/img/bell.svg) What is NEW! |
 |-------------------------------------------------|
-| Latest Release: March 28th, 2024. Kaito v0.2.2. |
+| Latest Release: July 12th, 2024. Kaito v0.3.0.  |
 | First Release: Nov 15th, 2023. Kaito v0.1.0.    |
 
 Kaito is an operator that automates the AI/ML inference model deployment in a Kubernetes cluster.
@@ -86,6 +86,8 @@ The detailed usage for Kaito supported models can be found in [**HERE**](presets
 
 The number of the supported models in Kaito is growing! Please check [this](./docs/How-to-add-new-models.md) document to see how to add a new supported model.
 
+In version v0.3.0, Kaito starts to support model fine-tuning and using fine-tuned adapters in inference service. Please check this [document](./docs/tuning/README.md).
+
 ## FAQ
 
 ### How to upgrade the existing deployment to use the latest model configuration?