Update README.md

README.md

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 # potential-robot
+Big Thanks to Done Collectively, Stellar, Helios, Gimbalabs and James D., Romain Soulat IOG. 
 
-Thank's to Randall Harmon, Helios community, Gimbalabs and James D., Romain Soulat IOG. 
+## Usage
+1. `npm install`
+2. `npm test`
+
+## How does it work?
+Start by cloning the repo and experimenting with the network emulator.
+
+Experiment with transaction inputs, find conditions that cause "transaction rejected" error.
+
+Experiment with the validator logic, e.g. https://github.com/aleeusgr/sniffle
 
-This is a toolbox for test-driven development on Cardano, using Helios.
-Start cloning the repo and experimenting with the ledger emulator.
-Gather product requirements and user stories, create Issues, formulate testable expectations and make tests pass.
-Contribute
+To build your dApp gather product requirements and user stories, create Issues - formulate testable expectations and make tests pass.
 
 ## Documentation:
 [Vitest](https://vitest.dev/)
 
 [Helios](https://github.com/Hyperion-BT/helios)
 
 [Helios vesting example](https://github.com/lley154/helios-examples/tree/main/vesting)
-
-## Usage
-1. `npm install`
-2. `npm test`
-3. onchain code is in `./src/vesting.hl`
-4. `./tests/unit` document Helios API
-5. tests in `./tests/*.test.ts` use pre-defined environment to run a transaction as a test and as an importable module. 
-6. importable transaction modules are in `src`
-