Add official documentation links

Added three key documentation links to guide different user types:
- PBC Fundamentals for general users
- Smart Contract Development guide for developers
- Node Operations guide for infrastructure operators

README.md

@@ -5,23 +5,36 @@ A list of awesome projects running on or interacting with Partisia Blockchain.
 Inspired by [awesome-python](https://github.com/vinta/awesome-python)
 
 ## Applications
-#TODO
+
+TODO
+
 ### Wallets
 - [Ledger Embedded App](https://github.com/partisiablockchain/pbc-ledger-embedded-app) - Official Ledger hardware wallet application for Partisia Blockchain
+
 ### On-chain Applications
 - [DeFi Smart Contracts](https://github.com/partisiablockchain/defi) - Official collection of decentralized finance smart contracts including tokens, NFTs, swaps, and auctions
+
 ## Blockchain Utilities
-#TODO
+
+TODO
+
 ## Documentation
-#TODO
+- [PBC Fundamentals](https://partisiablockchain.gitlab.io/documentation/pbc-fundamentals/introduction-to-the-fundamentals.html) - Introduction to Partisia Blockchain fundamentals for users.
+- [Smart Contract Development](https://partisiablockchain.gitlab.io/documentation/smart-contracts/introduction-to-smart-contracts.html) - Complete guide for smart contract developers.
+- [Node Operations](https://partisiablockchain.gitlab.io/documentation/node-operations/start-running-a-node.html) - Guide for running and operating blockchain nodes.
+
 ## Tutorials
 - [Example Contracts](https://github.com/partisiablockchain/example-contracts) - Official collection of example smart contracts for Partisia Blockchain
 - [ZK-as-a-Service](https://github.com/partisiablockchain/zk-as-a-service) - Example implementation of zero-knowledge proofs as a service for cross-chain secret voting
 - [dApp Playground](https://github.com/partisiablockchain/dapp-playground) - Interactive development environment with tutorials and example applications for learning Partisia Blockchain development
+
 ## Community
-#TODO
+
+TODO
+
 ## Official Resources
-#TODO
+
+TODO
 
 ## Contributing