Add cd operation

Author: IncoCode

.github/workflows/dotnet-core.yml

@@ -17,6 +17,8 @@ jobs:
       uses: actions/setup-dotnet@v1
       with:
         dotnet-version: 3.1.301
+    - name: Go to "Code" dir
+      run: cd Code && pwd && ls -la
     - name: Install dependencies
       run: dotnet restore
     - name: Build