Merge pull request #15 from pyth-network/abehjati/update-readme

Update README.md

Author: ali-behjati

pyth-sdk-solana/README.md

@@ -1,7 +1,7 @@
 # Pyth SDK Solana
 
 This crate provides utilities for reading price feeds from the [pyth.network](https://pyth.network/) oracle on the Solana network.
-The crate includes a library for on-chain programs and an off-chain example program.
+The crate includes a library for reading and using Pyth data feeds in Solana both on-chain (Solana programs) and off-chain (clients interacting with Solana blockchain). It also includes multiple off-chain example programs.
 
 Key features of this library include:
 
@@ -30,6 +30,8 @@ Pyth Network stores its price feeds in a collection of Solana accounts of variou
 * Product accounts store metadata about a product, such as its symbol (e.g., "BTC/USD").
 * Mapping accounts store a listing of all Pyth accounts
 
+> :warning: This structure is designed for Pyth Oracle internal program. In most of the use cases only Price account is needed.
+
 For more information on the different types of Pyth accounts, see the [account structure documentation](https://docs.pyth.network/how-pyth-works/account-structure).
 The pyth.network website also lists the public keys of the accounts (e.g., [Crypto.BTC/USD accounts](https://pyth.network/markets/#Crypto.BTC/USD)). 
 
@@ -106,7 +108,7 @@ This function additionally propagates any uncertainty in the price into uncertai
 
 ### Solana Account Structure
 
-> Warning: the Solana account structure is an internal API that is subject to change. Prefer to use `load_price` when possible.
+> :warning: The Solana account structure is an internal API that is subject to change. Prefer to use `load_price` when possible.
 
 This library also provides several `load_*` methods that allow users to translate the binary data in each account into an appropriate struct:
 
@@ -127,7 +129,7 @@ let mapping_account: &MappingAccount = load_mapping_account( &mapping_account_da
 
 ### Off-chain example program
 
-The example program prints the product reference data and current price information for Pyth on Solana devnet.
+The example [eth_price](examples/eth_price.rs) program prints the product reference data and current price information for Pyth on Solana devnet.
 Run the following commands to try this example program:
 
 ```
@@ -147,7 +149,7 @@ ema_price ....... 291343470000 x 10^-8
 ema_conf ........ 98874533 x 10^-8
 ```
 
-For an example of using Solana Account structure please run:
+For [an example](examples/get_accounts.rs) of using Solana Account structure please run:
 ```
 cargo run --example get_accounts
 ```