Add separate configs for testnet and mainnet (#149)

Author: m30m

pages/documentation/pythnet-price-feeds/sui.mdx

@@ -112,11 +112,22 @@ Now in your contract you can consume the price by calling `pyth::get_price` or o
 
 Use the following dependency in your `Move.toml` file to use the latest Pyth Sui package.
 
+Mainnet:
+
+```sh copy
+[dependencies.Pyth]
+git = "https://github.com/pyth-network/pyth-crosschain.git"
+subdir = "target_chains/sui/contracts"
+rev = "sui-contract-v.0.0.2-mainnet"
+```
+
+Testnet:
+
 ```sh copy
 [dependencies.Pyth]
 git = "https://github.com/pyth-network/pyth-crosschain.git"
 subdir = "target_chains/sui/contracts"
-rev = "8b721c38dcf19b2acfa81ad0560a39ce144c3b97"
+rev = "sui-contract-v.0.0.2-testnet"
 ```
 
 ### CLI Example