Update oracles.mdx

Author: PixelPil0t1

pages/app-developers/tools/build/oracles.mdx

@@ -1,4 +1,4 @@
----
+RNG---
 title: Oracles
 description: >-
   Learn about different oracles and how you can use them to access offchain data
@@ -48,7 +48,7 @@ There are two types of oracles:
     2.  Single-transaction oracles, which only require one transaction. The way this works is that the transaction that requests the information includes a callback (address and the call data to provide it).
         When the oracle is updated (which also happens through a transaction, but one that is not sent by the user), the oracle uses the callback to inform a contract of the result.
 
-## Random number generation (RGN)
+## Random number generation (RNG)
 
 Random number generation in blockchain applications ensures that smart contracts can access unbiased random values. This is essential for certain use cases like generative NFTs, gaming, commit & reveal schemes and more. Various approaches include using a trusted third party, blockhash-based methods, Verifiable Random Functions (VRF), quantum random numbers to name a few. Each method has trade-offs between simplicity, security, and trust assumptions, allowing developers to select the most suitable option for their use case.