Update main.yml

Author: mcbarton

.github/workflows/main.yml

@@ -365,7 +365,7 @@ jobs:
           export FIREFOX_TESTS_RETURN_VALUE=$( [ -s firefox_diff.txt ] && echo 1 || echo 0 )
           rm $HOME/Downloads/${{ matrix.notebook }}      
           export SAFARI_TESTS_RETURN_VALUE=0
-	  touch safari_diff.txt
+          touch safari_diff.txt
           if [[ "${{ matrix.os }}" == "macos"* ]]; then
             python -m pip install PyAutoGUI
             python scripts/enable-downloads-safari-github-ci.py
@@ -383,7 +383,7 @@ jobs:
             echo "Diff Firefox (blank means no diff)"
             cat firefox_diff.txt
             echo "Diff Chrome (blank means no diff)"
-	    cat chrome_diff.txt
+            cat chrome_diff.txt
             exit 1
           fi
         timeout-minutes: 15