message: small changes to docs with link to secure identities directories
diff: @@ -6,6 +6,7 @@ sub-folder is for a different project of the Working Group and has its own code
  - [utility-emissions-channel](utility-emissions-channel/README.md): [Utility Emissions Channel](https://wiki.hyperledger.org/display/CASIG/Utility+Emissions+Channel)
  - [net-emissions-token-network](net-emissions-token-network/README.md): [Net Emissions Token Network](https://wiki.hyperledger.org/display/CASIG/Emissions+Tokens+Network) and [Climate DAO](https://wiki.hyperledger.org/display/CASIG/Climate+DAOs)
  - [open-offsets-directory](open-offsets-directory/README.md): [Voluntary Carbon Offsets Directory](https://wiki.hyperledger.org/display/CASIG/Voluntary+Carbon+Offsets+Directory+Research+Project)
  +- [secure-identities](secure-identities/README.md): Support for signing transactions using Vault or web-socket
  Get involved! Please see [How to Contribute](https://wiki.hyperledger.org/display/CASIG/How+to+Contribute) to help us build this open source platform for climate action.
  