Updating tools page to use a table. Added Compliance Tressle. resolves …

…usnistgov#993.

docs/content/tools/_index.md

@@ -26,14 +26,12 @@ If you have produced a tool that supports the OSCAL formats that you would like
 
 See the [NIST Software Disclaimer](https://www.nist.gov/disclaimer) for more information.
 
-## OSCAL Project: Open Source Tools and Libraries
-
-- **[OSCAL Java Library:](https://github.com/usnistgov/liboscal-java)** Provides a Java-based programming API for reading and writing content conformant to the OSCAL XML, JSON, and YAML based models. This library is kept up-to-date with the [latest formats](/concepts/layer/) provided by the OSCAL project.
-- **[XSLT Tooling:](https://github.com/usnistgov/oscal-tools/tree/master/xslt)** A variety of Extensible Stylesheet Language (XSL) Transformations (XSLT), Cascading Style Sheets (CSS), and related utilities for authoring, converting, and publishing OSCAL content in various forms.
-
-## Community: Open Source Tools and Libraries
-
-- **[OSCALkit:](https://github.com/docker/oscalkit)** Provides a GoLang SDK for OSCAL. Converts OSCAL XML -> JSON (and vice versa). Converts [OpenControl](https://open-control.org/) projects into OSCAL.
-- **[OSCAL GUI:](https://github.com/brianrufgsa/OSCAL-GUI)** A proof of concept GUI tool for interacting with OSCAL content based on [OSCAL milestone 2](https://github.com/usnistgov/OSCAL/releases/tag/v1.0.0-milestone2).
-- **[OSCAL REST:](https://github.com/EasyDynamics/oscal-rest)** An initial OpenAPI definition of an OSCAL REST API.
-- **[OSCAL React Library:](https://github.com/EasyDynamics/oscal-react-library)** A library of React components and an example user interface application that provides a direct UI into OSCAL.
+## Open Source Tools and Libraries
+
+| Name | Provider/Developer | Description |
+|:---|:---|:---|
+| [Compliance trestle](https://github.com/IBM/compliance-trestle) | IBM | A python SDK and command line tool which manipulates OSCAL structures and supports transformation of data into OSCAL. |
+| [OSCAL Java Library](https://github.com/usnistgov/liboscal-java) | NIST OSCAL Project | A Java-based programming API for reading and writing content conformant to the OSCAL XML, JSON, and YAML based models. |
+| [OSCAL React Component Library](https://github.com/EasyDynamics/oscal-react-library) | Easy Dynamics | A library of reusable React components and an [example user interface application](https://oscal-viewer.msd.easydynamics.com/catalog) that provides a direct UI into OSCAL. |
+| [OSCAL REST API](https://github.com/EasyDynamics/oscal-rest) |  Easy Dynamics | An initial OpenAPI definition of an OSCAL REST API that describes how systems might manipulate catalogs, profiles, components, and SSPs. |
+| [XSLT Tooling](https://github.com/usnistgov/oscal-tools/tree/master/xslt) | NIST OSCAL Project | A variety of Extensible Stylesheet Language (XSL) Transformations (XSLT), Cascading Style Sheets (CSS), and related utilities for authoring, converting, and publishing OSCAL content in various forms. |