Update README with new description of Aptos (#5983)

README.md

@@ -9,7 +9,7 @@
 [![codecov](https://codecov.io/gh/aptos-labs/aptos-core/branch/main/graph/badge.svg?token=X01RKXSGDE)](https://codecov.io/gh/aptos-labs/aptos-core)
 [![Discord chat](https://img.shields.io/discord/945856774056083548?style=flat-square)](https://discord.gg/aptoslabs)
 
-Aptos-core strives towards being the safest and most scalable layer one blockchain solution. Today, this powers the Aptos Devnet, tomorrow Mainnet in order to create universal and fair access to decentralized assets for billions of people.
+Aptos is a layer 1 blockchain bringing a paradigm shift to Web3 through better technology and user experience. Built with Move to create a home for developers building next-gen applications.
 
 ## Getting Started