chore: make documentation and examples more prominent in README (sola…

…na-labs#26498)

* Make documentation and examples more prominent in README

There's a lot more documentation to this library than many users would see looking at the current README

- Make a dedicated 'Documentation and examples' heading
- Bring the Solana Cookbook (which has more examples than all the other documentation listed in the README) to the top 
- Mention the examples higher up in the README

* Update web3.js/README.md

* Update web3.js/README.md

web3.js/README.md

@@ -23,7 +23,10 @@
 
 This is the Solana Javascript API built on the Solana [JSON RPC API](https://docs.solana.com/apps/jsonrpc-api)
 
-[Latest API Documentation](https://solana-labs.github.io/solana-web3.js/)
+## Documentation and examples
+
+ - [The Solana Cookbook](https://solanacookbook.com/) has extensive task-based documentation using this library.
+ - For more detail on individual functions, see the [latest API Documentation](https://solana-labs.github.io/solana-web3.js/)
 
 ## Installation
 
@@ -84,16 +87,6 @@ console.log(solanaWeb3);
 console.log(solanaWeb3);
 ```
 
-## Examples
-
-Example scripts for the web3.js repo and native programs:
-
-- [Web3 Examples](https://github.com/solana-labs/solana/tree/master/web3.js/examples)
-
-Example scripts for the Solana Program Library:
-
-- [Token Program Examples](https://github.com/solana-labs/solana-program-library/tree/master/token/js/examples)
-
 ## Flow Support (Discontinued)
 
 Flow types are no longer supported in new releases. The last release with Flow support is v1.37.2 and its