fix minor errors

Author: yibeichan

.github/workflows/gh-pages.yml

@@ -21,10 +21,9 @@ jobs:
         environment-file: etc/environment.yml
         python-version: ${{ matrix.python-version }}
         auto-activate-base: false
+      run: conda activate pydra-tutorial
     - name: Install dependencies
-      run: |
-        pip install --upgrade pip
-        pip install -r jupyterbook/requirements.txt
+      run: conda install -c conda-forge jupyter-book
     - name: Build JupyterBook
       run: jb build -W jupyterbook
     - uses: peaceiris/actions-gh-pages@v3

.github/workflows/notebooks.yml

@@ -26,7 +26,7 @@ jobs:
         environment-file: etc/environment.yml
         python-version: ${{ matrix.python-version }}
         auto-activate-base: false
-           
+      run: conda activate pydra-tutorial     
     - name: Convert all md files to ipynb
       run: jupytext notebooks/*.md --to ipynb
     - name: Test notebooks with pytest