Update main.yml

Author: mcbarton

.github/workflows/main.yml

@@ -364,17 +364,17 @@ jobs:
           python -u scripts/automated-notebook-run-script.py --driver firefox --notebook ${{ matrix.notebook }} --kernel ${{ matrix.kernel }}
           echo "Diff Notebooks Firefox"
           nbdiff notebooks/${{ matrix.notebook }} $HOME/Downloads/${{ matrix.notebook }} --ignore-id --ignore-metadata
-	  export FIREFOX_TESTS_RETURN_VALUE=$?
-	  rm $HOME/Downloads/${{ matrix.notebook }}      
+          export FIREFOX_TESTS_RETURN_VALUE=$?
+          rm $HOME/Downloads/${{ matrix.notebook }}      
           export SAFARI_TESTS_RETURN_VALUE=0
           if [[ "${{ matrix.os }}" == "macos"* ]]; then
             python -m pip install PyAutoGUI
             python scripts/enable-downloads-safari-github-ci.py
             python -u scripts/automated-notebook-run-script.py --driver safari --notebook ${{ matrix.notebook }} --kernel ${{ matrix.kernel }}
-	    echo "Running xeus-cpp in Jupter Lite in  Safari"
+            echo "Running xeus-cpp in Jupter Lite in  Safari"
             echo "Diff Notebooks Safari"
             nbdiff notebooks/${{ matrix.notebook }} $HOME/Downloads/${{ matrix.notebook }} --ignore-id --ignore-metadata
-	    export SAFARI_TESTS_RETURN_VALUE=$?
+            export SAFARI_TESTS_RETURN_VALUE=$?
             rm $HOME/Downloads/${{ matrix.notebook }}
           fi
           if [[ $SAFARI_TESTS_RETURN_VALUE -ne 0 || $FIREFOX_TESTS_RETURN_VALUE -ne 0 || $CHROME_TESTS_RETURN_VALUE -ne 0 ]]; then