PR feedback: add summary about oscal-tools and oscal-cat

As requested, do this so that the distinction between release artifacts,
what metaschema-xslt does, and what higher-level transformations that
were in oscal-tools is more clear.

src/content/about/blog/oscal-first-deep-cleaning.md

@@ -15,7 +15,7 @@ Here is what changed:
 - The Metaschema tooling's source code, which we use to process OSCAL models and generate documentation, moved to its own repo, [metaschema-xslt](https://github.com/usnistgov/metaschema-xslt).
 - The generated JSON and XML schemas for the models and converters for JSON-XML and XML-JSON conversion are only [published as part of releases](https://github.com/usnistgov/OSCAL/releases), they are not saved in the [OSCAL repo](https://github.com/usnistgov/OSCAL/) like source code anymore.
 
-The NIST OSCAL Team officially maintains those new repos above and the same [oscal-content](https://github.com/usnistgov/oscal-content/), [liboscal-java](https://github.com/usnistgov/liboscal-java/), [oscal-cli](https://github.com/usnistgov/oscal-cli/) repos just like before. As priorities shifted, we have paused development on [oscal-cat](https://github.com/usnistgov/oscal-cat) and [oscal-tools](https://github.com/usnistgov/oscal-tools). Those projects are archived and remain available for reference and demonstration.
+The NIST OSCAL Team officially maintains those new repos above and the same [oscal-content](https://github.com/usnistgov/oscal-content/), [liboscal-java](https://github.com/usnistgov/liboscal-java/), [oscal-cli](https://github.com/usnistgov/oscal-cli/) repos just like before. As priorities shifted, we have paused development on [oscal-cat, the catalog authoring tool](https://github.com/usnistgov/oscal-cat), and [oscal-tools, a library of XSLT transformations for OSCAL developer use cases](https://github.com/usnistgov/oscal-tools). Those projects are archived and remain available for reference and demonstration.
 
 OSCAL leverages the [Metaschema Information Modeling Framework](https://github.com/usnistgov/metaschema) just like before, but we changed where and how we use the same Metaschema tooling.