Convert hyperlinks to lowcase

[Yuri05]

All links are valid, just to avoid issues with the link-checker (which is case sensitive)

  ➥  In file ./DDI_Qualification_CYP3A4/report.md
     bad reference (local) at src:1799:178-215:
       - text: "1"
       - link: 
       - anchor: References-for-OSPS-introduction

     ⛀  Anchor 'References-for-OSPS-introduction' is not present,
        did you mean references-for-osps-introduction (header II) at src:1813:1-35?

  ➥  In file ./DDI_Qualification_CYP3A4/report.md
     bad reference (local) at src:1801:458-495:
       - text: "2"
       - link: 
       - anchor: References-for-OSPS-introduction

     ⛀  Anchor 'References-for-OSPS-introduction' is not present,
        did you mean references-for-osps-introduction (header II) at src:1813:1-35?

  ➥  In file ./DDI_Qualification_CYP3A4/report.md
     bad reference (local) at src:1801:570-609:
       - text: "3,4"
       - link: 
       - anchor: References-for-OSPS-introduction

     ⛀  Anchor 'References-for-OSPS-introduction' is not present,
        did you mean references-for-osps-introduction (header II) at src:1813:1-35?

  ➥  In file ./DDI_Qualification_CYP3A4/report.md
     bad reference (local) at src:1801:935-974:
       - text: "3,4"
       - link: 
       - anchor: References-for-OSPS-introduction

     ⛀  Anchor 'References-for-OSPS-introduction' is not present,
        did you mean references-for-osps-introduction (header II) at src:1813:1-35?

  ➥  In file ./DDI_Qualification_CYP3A4/report.md
     bad reference (local) at src:1801:1009-1048:
       - text: "5-7"
       - link: 
       - anchor: References-for-OSPS-introduction

     ⛀  Anchor 'References-for-OSPS-introduction' is not present,
        did you mean references-for-osps-introduction (header II) at src:1813:1-35?

  ➥  In file ./DDI_Qualification_CYP3A4/report.md
     bad reference (local) at src:1803:314-351:
       - text: "2"
       - link: 
       - anchor: References-for-OSPS-introduction

     ⛀  Anchor 'References-for-OSPS-introduction' is not present,
        did you mean references-for-osps-introduction (header II) at src:1813:1-35?

  ➥  In file ./DDI_Qualification_CYP3A4/report.md
     bad reference (local) at src:1803:434-471:
       - text: "8"
       - link: 
       - anchor: References-for-OSPS-introduction

     ⛀  Anchor 'References-for-OSPS-introduction' is not present,
        did you mean references-for-osps-introduction (header II) at src:1813:1-35?

  ➥  In file ./DDI_Qualification_CYP3A4/report.md
     bad reference (local) at src:1803:643-686:
       - text: "2,4,8,9"
       - link: 
       - anchor: References-for-OSPS-introduction

     ⛀  Anchor 'References-for-OSPS-introduction' is not present,
        did you mean references-for-osps-introduction (header II) at src:1813:1-35?

  ➥  In file ./DDI_Qualification_UGT/report.md
     bad reference (local) at src:217:178-215:
       - text: "1"
       - link: 
       - anchor: References-for-OSPS-introduction

     ⛀  Anchor 'References-for-OSPS-introduction' is not present,
        did you mean references-for-osps-introduction (header II) at src:231:1-35?