Update README.md

README.md

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 - [ ] [Identification of AMR & Virulence genes](slides/240409_TR_Identifying_resistance_and_virulence_factors.pdf)
 - [ ] [AMR & Virfinder exercise (webbased)](exercises/240409_Blockkurs_ZG_ResVirExercise.pdf)
 - [ ] [AMR exercise abricate (command line)](exercises/abricate_exercise.md)
-- [ ] [Virulence Factors](slides/240410_Blockkurs_Bioinformatik_Lecture Bacterial Virulence_final.pdf)
+- [ ] [Virulence Factors](slides/240410_Blockkurs_Bioinformatik_Lecture_Bacterial_Virulence_final.pdf)
 
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 - [ ] [PapGII: a UPEC virulence factor](slides/230331_papGII_VirulenceFactor_UPEC_YG.pdf)