setting the env to lectures

Author: Alim-faraji

.github/workflows/ci.yml

@@ -35,7 +35,7 @@ jobs:
       - name: Installing all the packages
         shell: bash -l {0}
         run: |
-          julia --project --threads auto -e 'using Pkg; Pkg.instantiate();'
+          julia --project --threads auto -e 'using Pkg; Pkg.activate("lectures"); Pkg.instantiate();'
       # Download Jupyter Book Cache
       - name: Download "build" folder (cache)
         uses: dawidd6/action-download-artifact@v2