diff --git a/unit00_introduction/unit01_introduction.pdf b/unit00_introduction/unit01_introduction.pdf index 700c01d..72df523 100644 Binary files a/unit00_introduction/unit01_introduction.pdf and b/unit00_introduction/unit01_introduction.pdf differ diff --git a/unit00_introduction/unit01_introduction.pptx b/unit00_introduction/unit01_introduction.pptx index 8c088de..f8af3cf 100644 Binary files a/unit00_introduction/unit01_introduction.pptx and b/unit00_introduction/unit01_introduction.pptx differ diff --git a/unit00_introduction/~$unit01_introduction.pptx b/unit00_introduction/~$unit01_introduction.pptx deleted file mode 100644 index b71c76f..0000000 Binary files a/unit00_introduction/~$unit01_introduction.pptx and /dev/null differ