Update README: Add Deployment Info, Contract Review Links, and Deployment Instructions

[jdsika]

Objective:
Update the repository README.md to include:

• Where the project is deployed.
• How to review the deployed contracts and example chain interactions.
• Clear deployment instructions for the On-Chain SSI architecture (migrating CRSet from Ethereum Blobs to Tezos Etherlink).

---

Tasks:

1. Add Deployment Information:

   • Specify the networks where the project is deployed (e.g., Tezos Etherlink testnet/mainnet, Ethereum testnet/mainnet).
   • Provide links to block explorers or dashboards where users can review the deployed contracts (e.g., Etherlink Explorer, Etherscan).
   • Include example transaction hashes or contract addresses for reference.

2. Document Contract Review and Example Interactions:

   • Add a section titled "Review Deployed Contracts" with:
     • Links to the deployed Issuer/Verifier services and Registry Smart Contracts.
     • Example chain interactions (e.g., DID resolution, credential issuance/verification).
     • Screenshots or links to example transactions (if available).

3. Add Deployment Instructions:

   • Create a "Deployment Guide" section with step-by-step instructions for:
     • Setting up the environment (e.g., Node.js, Taquito/Tezos SDK, Hardhat/Truffle for Ethereum).
     • Configuring network settings (RPC endpoints, private keys, gas fees).
     • Compiling and deploying contracts to Ethereum Blobs and Tezos Etherlink.
     • Migrating CRSet data between chains (if applicable).
     • Verifying the deployment (e.g., checking contract addresses, testing interactions).

4. Example Structure for README Updates:

   ## 🌐 Deployment Information
   - **Ethereum Blob Contracts**: [Etherscan Link](#)
     - Example Transaction: [`0x123...`](https://etherscan.io/tx/0x123)
   - **Tezos Etherlink Contracts**: [Etherlink Explorer Link](#)
     - Example Transaction: [`op123...`](https://etherlink.explorer/tx/op123)
   
   ## 🔍 Review Deployed Contracts
   - **Issuer Service**: [`0x456...`](#)
   - **Verifier Service**: [`KT1789...`](#)
   - **Registry Smart Contract**: [`0x789...`](#)
   - **Example Interactions**:
     - [DID Resolution Example](#)
     - [Credential Issuance Example](#)
   
   ## 🛠️ Deployment Instructions
   ### Prerequisites
   - Node.js v18+
   - Taquito/Tezos SDK for Tezos, Hardhat for Ethereum
   - RPC endpoints for Ethereum and Tezos Etherlink
   
   ### Steps
   1. Clone the repository and install dependencies:
      ```bash
      git clone https://github.com/ASCS-eV/on-chain-ssi.git
      cd on-chain-ssi
      npm install

   2. Configure .env with network settings and private keys.
   3. Compile contracts:

      npx hardhat compile  # Ethereum
      npx taquito compile  # Tezos

   4. Deploy contracts:

      npx hardhat run scripts/deploy-ethereum.js --network ethereum
      npx taquito run scripts/deploy-tezos.js --network etherlink

   5. Verify deployment by interacting with the contracts (see Example Interactions).