add build and test status badges in Readme

Author: heyAyushh

README.md

@@ -2,6 +2,8 @@
 
 ## Onchain program examples for :anchor: Anchor :crab: Native Rust, [TS] TypeScript  and :snake: Python
 
+[![Native](https://github.com/solana-developers/program-examples/actions/workflows/solana-native.yml/badge.svg?event=schedule)](https://github.com/solana-developers/program-examples/actions/workflows/solana-native.yml) [![Anchor](https://github.com/solana-developers/program-examples/actions/workflows/anchor.yml/badge.svg?event=schedule)](https://github.com/solana-developers/program-examples/actions/workflows/anchor.yml) [![Steel](https://github.com/solana-developers/program-examples/actions/workflows/steel.yml/badge.svg?event=schedule)](https://github.com/solana-developers/program-examples/actions/workflows/steel.yml) [![Poseidon](https://github.com/solana-developers/program-examples/actions/workflows/poseidon.yml/badge.svg?event=schedule)](https://github.com/solana-developers/program-examples/actions/workflows/poseidon.yml)
+
 This repo contains Solana onchain programs (referred to as 'Smart Contracts' in other blockchains).
 
 > [!NOTE]