Update examples.md (MystenLabs#870)

Make all links into sui_programmability absolute

doc/src/explore/examples.md

@@ -2,26 +2,26 @@
 title: Examples of Sui Smart Contracts
 ---
 
-Find sample Sui smart contract implementations in the [sui_programmability/examples](../../../sui_programmability/examples) directory. Here is a rundown of existing examples.
+Find sample Sui smart contract implementations in the [sui_programmability/examples](https://github.com/MystenLabs/sui/tree/main/sui_programmability/examples) directory. Here is a rundown of existing examples.
 
 ## Basics
 
-Use the [Basics](../../../sui_programmability/examples/basics) example to explore object creation, update, and exchange.
+Use the [Basics](https://github.com/MystenLabs/sui/tree/main/sui_programmability/examples/basics) example to explore object creation, update, and exchange.
 
 ## DeFi
 
-In the [DeFi](../../../sui_programmability/examples/defi) example, find an atomic swap leveraging an escrow agent that is trusted for liveness, but not safety.
+In the [DeFi](https://github.com/MystenLabs/sui/tree/main/sui_programmability/examples/defi) example, find an atomic swap leveraging an escrow agent that is trusted for liveness, but not safety.
 
 ## Fungible Tokens
 
-In the [Fungible Tokens](../../../sui_programmability/examples/fungible_tokens) example, see a token managed by a treasurer trusted for minting and burning for
+In the [Fungible Tokens](https://github.com/MystenLabs/sui/tree/main/sui_programmability/examples/fungible_tokens) example, see a token managed by a treasurer trusted for minting and burning for
 how (e.g.) a fiat-backed stablecoin would work.
 
 ## Games
 
-The [Games](../../../sui_programmability/examples/games) example lets you try out and modify toy games built on top of Sui! These include classic Tic Tac Toe
+The [Games](https://github.com/MystenLabs/sui/tree/main/sui_programmability/examples/games) example lets you try out and modify toy games built on top of Sui! These include classic Tic Tac Toe
 , rock paper scissors, and various versions of an adventure game (Hero).
 
 ## NFTs
 
-In the [NFTs](../../../sui_programmability/examples/nfts) example, browse non-fungible tokens of various types and see NFTs representing assets in a game.
+In the [NFTs](https://github.com/MystenLabs/sui/tree/main/sui_programmability/examples/nfts) example, browse non-fungible tokens of various types and see NFTs representing assets in a game.