Fix typo for a link ref in derive-service-account.md (#1366)

Author: tlwu2013

docs/howto/derive-service-account.md

@@ -23,7 +23,7 @@ The service account must have permissions to:
 Additionally, for clusters that use the [OwnerReferencesPermissionEnforcement](https://kubernetes.io/docs/reference/access-authn-authz/admission-controllers/#ownerreferencespermissionenforcement) admission plug-in, the service account must also have permissions to:
  - update finalizers on the ClusterExtension to be able to set blockOwnerDeletion and ownerReferences
 
-It is good security practice to follow the [principle of least privilege(https://en.wikipedia.org/wiki/Principle_of_least_privilege)], and scope permissions to specific resource names, wherever possible.
+It is good security practice to follow the [principle of least privilege](https://en.wikipedia.org/wiki/Principle_of_least_privilege), and scope permissions to specific resource names, wherever possible.
 Keep in mind, that it is not possible to scope `create`, `list`, and `watch` permissions to specific resource names.
 
 Depending on the scope, each permission will need to be added to either a `ClusterRole` or a `Role` and then bound to the service account with a `ClusterRoleBinding` or a `RoleBinding`.
@@ -349,4 +349,4 @@ kubectl create clusterrolebinding my-cluster-extension-installer-role-binding \
 In the spirit of making this process more tenable until the proper tools are in place, the scripts
 in [hack/tools/catalogs](https://github.com/operator-framework/operator-controller/blob/main/hack/tools/catalogs) were created to help the user navigate and search catalogs as well
 as to generate the minimal RBAC requirements. These tools are offered as is, with no guarantees on their correctness, 
-support, or maintenance. For more information, see [Hack Catalog Tools](https://github.com/operator-framework/operator-controller/blob/main/hack/tools/catalogs/README.md).
+support, or maintenance. For more information, see [Hack Catalog Tools](https://github.com/operator-framework/operator-controller/blob/main/hack/tools/catalogs/README.md).