Update learn/data-availability.md

Co-authored-by: Marko <marko@baricevic.me>

Author: pthmas

learn/data-availability.md

@@ -1,6 +1,6 @@
 # Data Availability in Rollkit
 
-Data availability (DA) is a core component of Rollkit's modular rollup framework. In Rollkit, data availability ensures that all transaction data and block information required to verify the rollup's state is accessible to anyone running a node or light client.
+Data availability (DA) is a core of Rollkit's. Rollkit utilize's  data availability ensures that all transaction data and block information required to verify the rollup's state is accessible to anyone running a node or light client.
 
 ## How Rollkit Handles Data Availability