Update example workflow

Author: franciszekjob

README.md

@@ -2,8 +2,14 @@
 
 Sets up [Starknet Foundry] in your GitHub Actions workflow supporting caching out of the box.
 
+
+> 📝 **Note**
+> At this moment, only Linux and MacOS are supported.
+
 ## Example workflow
 
+Make sure you pass the valid path to `Scarb.lock` to [setup-scarb](https://github.com/marketplace/actions/setup-scarb) action. This way, all dependencies including snforge_scarb_plugin will be cached between runs.
+
 ```yaml
 name: My workflow
 on:
@@ -14,12 +20,17 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+
       - name: Setup Starknet Foundry
         uses: foundry-rs/setup-snfoundry@v3
-      - name: Check versions
-        run: |
-          snforge --version
-          sncast --version
+
+      - name: Setup Scarb
+        uses: software-mansion/setup-scarb@v1
+        with:
+          scarb-lock: ./hello_starknet/Scarb.lock
+
+      - name: Run tests
+        run: cd hello_starknet && snforge test
 ```
 
 ## Inputs
@@ -39,32 +50,6 @@ jobs:
   subdirectory (`${{ steps.setup-starknet-foundry.outputs.starknet-foundry-prefix }}/bin`).
 - `starknet-foundry-version` - Version of Starknet Foundry that was installed (as reported by `snforge -V`).
 
-## Caching
-
-In order to optimalize the workflow, you should cache the Starknet Foundry installation. Here is an example of how to do it:
-
-```yaml
-name: My workflow
-on:
-  push:
-  pull_request:
-jobs:
-  check:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Setup Starknet Foundry
-        id: setup-snfoundry
-        uses: foundry-rs/setup-snfoundry@v3
-      - name: Check versions
-        run: |
-          snforge --version
-          sncast --version
-      - name: Cache Starknet Foundry installation
-        uses: actions/cache@v4
-        with:
-          path: ${{ steps.setup-snfoundry.outputs.starknet-foundry-prefix }}
-          key: ${{ runner.os }}-snfoundry-${{ steps.setup-snfoundry.outputs.starknet-foundry-version }}
-```
+For more information, visit [Starknet Foundry docs section](https://foundry-rs.github.io/starknet-foundry/testing/running-tests.html) dedicated to CI setup.
 
 [Starknet Foundry]: https://foundry-rs.github.io/starknet-foundry