Update README.md

Author: matheuscscp

rfcs/0010-multi-tenant-workload-identity/README.md

@@ -594,7 +594,7 @@ The file `workloadidentity/interfaces/interfaces.go` would contain the following
 // setup simpler.
 const IdentityDirectAccess = "DirectAccess"
 
-// IdentitySessionName returns a name that can used for the session that will
+// IdentitySessionName returns a name that can be used for the session that will
 // be created when a Kubernetes ServiceAccount is impersonating a cloud provider
 // identity. This is useful for example in the AWS provider, where the process
 // of impersonating an IAM Role accepts a session name.