Update README.md

README.md

@@ -10,7 +10,19 @@ v3.3.1 and [SOL012](https://www.etsi.org/deliver/etsi_gs/NFV-SOL/001_099/012/03.
 
 More information and download is available at [DGS/NFV-TST010ed331](https://portal.etsi.org/webapp/WorkProgram/Report_WorkItem.asp?WKI_ID=58931).
 
-## Overview
+## Available versions
+
+The NFV API Conformance test specification is available in the following versions:
+
+| TST010 Version | SOL Specifications                                                                        | API Conformance Tests                                          |
+|----------------|-------------------------------------------------------------------------------------------|----------------------------------------------------------------|
+| v2.4.1         | SOL002 SOL003 SOL005 v2.4.1                                                               | [v2.4.1](https://forge.etsi.org/rep/nfv/api-tests/tree/2.4.1/) |
+| v2.6.1         | SOL002 SOL003 SOL005 v2.6.1                                                               | [v2.6.1](https://forge.etsi.org/rep/nfv/api-tests/tree/2.6.1/) |
+| v2.7.1         | SOL002 SOL003 SOL005 v2.7.1                                                               | [v2.6.1](https://forge.etsi.org/rep/nfv/api-tests/tree/2.7.1/) |
+| v3.3.1         | SOL002 SOL003 SOL005 v3.3.1<br>SOL009 SOL011        v3.3.1<br>SOL012               v3.4.1 | [v3.3.1](https://forge.etsi.org/rep/nfv/api-tests/tree/3.3.1/) |
+
+
+## Test Specification Overview
 
 The Test Specification is built as a collection of [Robot Framework](robotframework.org/) Test Description. [Robot Framework](robotframework.org/) is a generic test automation framework for acceptance testing and acceptance test-driven development.