Update readme with versioning data (#974)

Author: MauroToscano

README.md

@@ -13,6 +13,7 @@
   - [Aligned Infrastructure Guide](#aligned-infrastructure-guide)
   - [Submitting Proofs to Aligned](#submitting-proofs-to-aligned)
   - [Integrating Aligned into your Project](#integrating-aligned-into-your-project)
+  - [Versioning and Networks](#versioning-and-networks)
 
 
 ## The Project
@@ -181,3 +182,11 @@ For submitting proofs generated by your own project to the network via CLI, see
 ## Integrating Aligned into your Project
 
 If you are developing applications using Aligned, we offer a [Rust-SDK](docs/3_guides/1_SDK_how_to.md) for submitting proofs directly to the network within your applications.
+
+## Versioning and Networks
+
+Testnet code and documentation is always in sync with the default [Testnet Branch](https://github.com/yetanotherco/aligned_layer/tree/feat/testnet)
+
+Releases are provided for each version of the testnet.
+
+Latest version of the code, deployed on staging network, is always on [Staging Branch](https://github.com/yetanotherco/aligned_layer/tree/feat/staging)