replace pnpm with npm in Readme

Author: AlexKushnir1

examples/simple-project/README.md

@@ -4,16 +4,16 @@ This is the simplest project setup example with workspaces-js. You can copy it a
 
 ## Usage
 ```
-yarn
-yarn test
+pnpm install
+pnpm test
 ```
 
 ## Setup your project
 
 Assume you have written your smart contract. Setup and write workspaces-js test as this project is easy:
 
 1. Build the contract to `.wasm` as place it in `contracts/`.
-2. Install the `near-workspaces` and `ava` with `npm` or `yarn`.
+2. Install the `near-workspaces` and `ava` with `pnpm` or you package manager.
 3. Copy the ava.config.cjs to you project root directory.
 4. Write test, place in `__tests__/`, end with `.ava.js`. You can refer to `__tests__/test-status-message.ava.js` as an example.
-5. We're done! Run test with `yarn test` and continue adding more tests!
+5. We're done! Run test with `pnpm test` and continue adding more tests!