Update introduction.mdx (#41)

* Update introduction.mdx

* Update introduction.mdx

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Co-authored-by: Cal <calum.moore@gmail.com>

Author: sdgandhi

introduction.mdx

@@ -6,10 +6,10 @@ Polybase is a privacy preserving decentralized database, built on zk-STARKs. We
 
 **At a high level, Polybase is a NoSQL-like database, with validation rules written in a JavaScript like language. The SDK is similar to Firestore and Supabase.**
 
-Polybase is better than using a centralized database like Firebase, Postgres or Supabase because you can encrypt data using wallets for "self sovereign data" and verifiably query Polybase from smart collections (coming soon).
+Polybase is better than using a centralized database like Firebase, Postgres or Supabase because it has built-in web3 permissions. You can do row-level token gating and wallet-based permissions. Additionally, you can encrypt data using wallets for "self sovereign data" and verifiably query Polybase from smart collections (coming soon).
 
 Polybase is better than storing data on-chain because it's 1000 to a million times cheaper than on-chain storage. For example, storing 1MB on Ethereum costs around $10,000.
 
 **Blockchains are not built for scalable structured data storage so we built Polybase to combine the best attributes of web2 databases and blockchains.**
 
-You can [get started](/get-started) in under 5 minutes.
+You can [get started](/get-started) in under 5 minutes.