docs: Update README.md for Hiero (#688)

Signed-off-by: Hendrik Ebbers <[email protected]>
Signed-off-by: Alfredo Gutierrez <[email protected]>
Co-authored-by: Alfredo Gutierrez <[email protected]>

Author: hendrikebbers

README.md

@@ -1,18 +1,16 @@
-# Hedera Block Node
+# Hiero Block Node
 
-Implementation of the Hedera Block Node, which is responsible for consuming the block streams, maintaining state and exposing additional targeted value adding APIs to the Hedera community.
+Implementation of the Hiero Block Node, which is responsible for consuming the block streams, maintaining state and exposing additional targeted value adding APIs to the Hiero community.
 
 ## Table of Contents
 
 1. [Project Links](#project-links)
-1. [Prerequisites](#prerequisites)
-1. [Overview of child modules](#overview-of-child-modules)
-1. [Getting Started](#getting-started)
-1. [Support](#support)
-1. [Contributing](#contributing)
-1. [Code of Conduct](#code-of-conduct)
-1. [Security](#-security)
-1. [License](#license)
+2. [Prerequisites](#prerequisites)
+3. [Overview of child modules](#overview-of-child-modules)
+4. [Getting Started](#getting-started)
+5. [Contributing](#contributing)
+6. [Code of Conduct](#code-of-conduct)
+7. [License](#license)
 
 ## Project Links
 
@@ -42,29 +40,17 @@ Implementation of the Hedera Block Node, which is responsible for consuming the
 
 ## Getting Started
 
-Refer to the [Hedera Block Node Documentation Overview](docs/overview.md) for more information about the project, design and guides.
-
-## Support
-
-If you have a question on how to use the product, please see our
-[support guide](https://github.com/hashgraph/.github/blob/main/SUPPORT.md).
+Refer to the [Hiero Block Node Documentation Overview](docs/overview.md) for more information about the project, design and guides.
 
 ## Contributing
 
-Contributions are welcome. Please see the
-[contributing guide](https://github.com/hashgraph/.github/blob/main/CONTRIBUTING.md)
-to see how you can get involved.
+Whether you’re fixing bugs, enhancing features, or improving documentation, your contributions are important — let’s build something great together!
 
-## Code of Conduct
+Please read our [contributing guide](https://github.com/hiero-ledger/.github/blob/main/CONTRIBUTING.md) to see how you can get involved.
 
-This project is governed by the
-[Contributor Covenant Code of Conduct](https://github.com/hashgraph/.github/blob/main/CODE_OF_CONDUCT.md). By
-participating, you are expected to uphold this code of conduct. Please report unacceptable behavior
-to [[email protected]](mailto:[email protected]).
-
-## 🔐 Security
+## Code of Conduct
 
-Please do not file a public ticket mentioning the vulnerability. Refer to the security policy defined in the [SECURITY.md](https://github.com/hashgraph/hedera-block-node/blob/main/SECURITY.md).
+Hiero uses the Linux Foundation Decentralised Trust [Code of Conduct](https://www.lfdecentralizedtrust.org/code-of-conduct).
 
 ## License