Cleanup Readme and add TCK link (#231)

Author: jimmarino

README.md

@@ -1,11 +1,21 @@
 # Decentralized Claims Protocol DCP
 
-This repository contains normative documents defining protocols and flows of the Eclipse Decentralized Claims Protocol (DCP) defines an interoperable overlay to the [Dataspace Protocol (DSP)](https://github.com/eclipse-dataspace-protocol-base/DataspaceProtocol) Specifications for conveying organizational identities and establishing trust in a way that preserves privacy and limits the possibility of network disruption.
+This repository contains normative documents defining protocols and flows of the Eclipse Decentralized Claims Protocol
+Specification (DCP). The specification defines an interoperable overlay to
+the [Dataspace Protocol Specification (DSP)](https://github.com/eclipse-dataspace-protocol-base/DataspaceProtocol) for
+conveying organizational identities and establishing trust in a way that preserves privacy and limits the possibility of
+network disruption.
 
-The scope of Eclipse DCP specification includes:
+The scope of the Eclipse DCP specification includes:
 
 - Specifying a format for self-issued identity tokens
 - Defining a protocol for storing and presenting Verifiable Credentials and other identity-related resources
 - Defining a protocol for parties to request credentials from a credential issuer
 
-Eclipse DCP supports multiple trust anchors and allow participants to manage and verify presentations without needing third-party systems outside their control. Note that it is not a requirement for Eclipse DCP to specify a decentralized or "self-sovereign" identity protocol, but it may be based on it.
+Eclipse DCP supports multiple trust anchors and allows participants to manage and verify presentations without needing
+third-party systems outside their control.
+
+## Technology Compatibility Kit
+
+Eclipse DCP includes a [Technology Compatibility Kit (TCK)](https://github.com/eclipse-dataspacetck/dcp-tck) that can be
+used to test implementation compliance to the specification.