Update docs/adr/0010-use-direct-chain.md

Co-authored-by: Sebastian Nagel <sebastian.nagel@ncoding.at>

docs/adr/0010-use-direct-chain.md

@@ -8,7 +8,7 @@ Date: 2021-10-23
 
 ## Context
 
-* On-Chain Validation is a critical part of the Hydra protocol, it requires both the ability to _submit_ transactions to the _Layer 1_ chain advancing the state of a Head, and observing those transactions as the [Plutus](https://github.com/input-output-hk/plutus) contracts are validated
+* On-Chain Validation is a critical part of the Hydra protocol, it requires both the ability to _submit_ transactions to the _Layer 1_ chain advancing the state of a Head, and _observing_ those transactions as the [Plutus](https://github.com/input-output-hk/plutus) contracts are validated
 * The [Plutus Application Framework](https://github.com/input-output-hk/plutus-apps) is expected to provide the necessary machinery to allow "Smart Contracts" applications to interact with the chain but it's still under active development and not ready for deployment on-chain
 * We want to gather feedback as early as possible and deliver a fully functional Hydra Head node for early adopters to test on a "real" chain (testnet)
 * Our experiment connecting directly to a Cardano node has been conclusive. We can: