📚 Update readme for bin/knapsacker

Minor tweak

Related to:

- https://github.com/scientist-softserv/adventist-dl/issues/552

README.md

@@ -94,7 +94,7 @@ Prior to Hyku Knapsack, organizations would likely clone [Hyku](https://github.c
 
 With Hyku Knapsack, the goal is three-fold:
 
-1. To isolate the upstream Samvera Hyku code from your local modifications.  This isolation is via the submodule `./hyrax-webapp` submodule.
+1. To isolate the upstream Samvera Hyku code from your local modifications.  This isolation is via the `./hyrax-webapp` submodule.
 2. To provide a clear and separate space for extending/overriding Hyku functionality.
 3. To provide a cleaner pathway for upgrading the underlying Hyku application; for things such as security updates, bug fixes, and upstream enhancements.
 
@@ -117,6 +117,8 @@ You can pipe that output into a file and begin working on reviewing and moving f
 
 Once you've moved over the files, you'll want to boot up your Knapsack and then work through your test plan.
 
+The `bin/knapsacker` is general purpose.  I have used it to compare one non-Knapsack Hyku instance against Samvera's Hyku.  I have also used it to compare a Knapsack's file against it's submodule Hyku instance.
+
 ## Installation
 
 If not using a current version, add this line to Hyku's Gemfile: