fix typos

README.md

@@ -44,7 +44,7 @@ Checking _inclusion_, is easy. We can simply check that the transaction is inclu
 ### The DaService Trait
 
 The `DaService` trait is slightly more complicated than the `DaVerifier`. Thankfully, it exists entirely outside of the
-rollup's state machine - so it never has to be proven in zk. This means that its perfomance is less critical, and that
+rollup's state machine - so it never has to be proven in zk. This means that its performance is less critical, and that
 upgrading it in response to a vulnerability is much easier.
 
 The job of the `DAService` is to allow the Sovereign SDK's node software to communicate with a DA layer. It has two related

src/helpers/mod.rs

@@ -1,4 +1,4 @@
-// Tags that are used to seperate the different parts of the script
+// Tags that are used to separate the different parts of the script
 const ROLLUP_NAME_TAG: &[u8] = &[1];
 const SIGNATURE_TAG: &[u8] = &[2];
 const PUBLICKEY_TAG: &[u8] = &[3];