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 # Contents
 
-To follow the introduction to Nextflow you can open the IntroNextflowFundamentals.pdf or the [IntroNextflowFundamentals.pptx](https://biosustain.github.io/dsp_nextflow_training/course_contents/IntroNextflowFundamentals.pptx) as you prefer.
+To follow the introduction to Nextflow you can open the [IntroNextflowFundamentals.pdf](https://biosustain.github.io/dsp_nextflow_training/course_contents/IntroNextflowFundamentals.pdf) or the [IntroNextflowFundamentals.pptx](https://biosustain.github.io/dsp_nextflow_training/course_contents/IntroNextflowFundamentals.pptx) as you prefer.
 
 To follow the hands-on tutorial click [here](https://biosustain.github.io/dsp_nextflow_training/course_contents/Tutorial.html).
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