Update CHANGELOG.md

Author: achamayou

CHANGELOG.md

@@ -817,6 +817,8 @@ Some discrepancies with the TR remain, and are being tracked under https://githu
 
 Initial pre-release
 
+[0.99.3]: https://github.com/microsoft/CCF/releases/tag/ccf-0.99.3
+[0.99.2]: https://github.com/microsoft/CCF/releases/tag/ccf-0.99.2
 [0.99.1]: https://github.com/microsoft/CCF/releases/tag/ccf-0.99.1
 [0.99.0]: https://github.com/microsoft/CCF/releases/tag/ccf-0.99.0
 [0.19.3]: https://github.com/microsoft/CCF/releases/tag/ccf-0.19.3