Update README.md (MystenLabs#778)

Link to new examples page from README

README.md

@@ -4,7 +4,7 @@ Welcome to Sui, a next generation smart contract platform with high throughput,
 
 * To jump right into building smart contract applications on top of Sui, start at the [Move Smart Contract Quick Start](doc/src/build/move.md).
 * To experiment with a sample Sui wallet, check out [Wallet Quick Start](doc/src/build/wallet.md).
-* To understand what's possible by browsing Move code built on top of Sui, review the [examples](sui_programmability/examples).
+* To understand what's possible by browsing Move code built on top of Sui, review the [examples](doc/src/explore/examples.md).
 * To start coding against Sui's REST APIs, start at the [API reference](https://app.swaggerhub.com/apis/arun-koshy/sui-api).
 * To learn what distinguishes Sui from other blockchain systems, see [How Sui Differs?](doc/src/learn/sui-compared.md).
 * To go deep on how Sui works, read the [Sui Smart Contract Platform](doc/paper/sui.pdf) white paper.