doc: sock: fix broken markdown link
doc: sock: fix broken markdown link

toonst/RIOT,immesys/RiSyn,rfuentess/RIOT,toonst/RIOT,yogo1212/RIOT,Josar/RIOT,backenklee/RIOT,kerneltask/RIOT,A-Paul/RIOT,kb2ma/RIOT,jfischer-phytec-iot/RIOT,LudwigOrtmann/RIOT,hamilton-mote/RIOT-OS,authmillenon/RIOT,beurdouche/RIOT,gautric/RIOT,aeneby/RIOT,OlegHahm/RIOT,BytesGalore/RIOT,A-Paul/RIOT,OTAkeys/RIOT,cladmi/RIOT,katezilla/RIOT,neiljay/RIOT,adjih/RIOT,yogo1212/RIOT,kYc0o/RIOT,mfrey/RIOT,authmillenon/RIOT,gebart/RIOT,immesys/RiSyn,cladmi/RIOT,kb2ma/RIOT,plushvoxel/RIOT,jbeyerstedt/RIOT-OTA-update,yogo1212/RIOT,adrianghc/RIOT,BytesGalore/RIOT,OlegHahm/RIOT,lazytech-org/RIOT,LudwigKnuepfer/RIOT,ant9000/RIOT,avmelnikoff/RIOT,ant9000/RIOT,RIOT-OS/RIOT,avmelnikoff/RIOT,LudwigOrtmann/RIOT,plushvoxel/RIOT,lazytech-org/RIOT,rfuentess/RIOT,kerneltask/RIOT,thomaseichinger/RIOT,cladmi/RIOT,RIOT-OS/RIOT,LudwigOrtmann/RIOT,TobiasFredersdorf/RIOT,backenklee/RIOT,ks156/RIOT,josephnoir/RIOT,dkm/RIOT,miri64/RIOT,plushvoxel/RIOT,adrianghc/RIOT,kaleb-himes/RIOT,mtausig/RIOT,biboc/RIOT,Hyungsin/RIOT-OS,A-Paul/RIOT,aeneby/RIOT,aeneby/RIOT,RIOT-OS/RIOT,ant9000/RIOT,syin2/RIOT,kbumsik/RIOT,mfrey/RIOT,rfuentess/RIOT,neumodisch/RIOT,kaleb-himes/RIOT,OTAkeys/RIOT,basilfx/RIOT,OTAkeys/RIOT,yogo1212/RIOT,jfischer-phytec-iot/RIOT,Hyungsin/RIOT-OS,smlng/RIOT,lazytech-org/RIOT,A-Paul/RIOT,kYc0o/RIOT,LudwigOrtmann/RIOT,authmillenon/RIOT,neumodisch/RIOT,x3ro/RIOT,gautric/RIOT,jfischer-phytec-iot/RIOT,OlegHahm/RIOT,Josar/RIOT,rfuentess/RIOT,dkm/RIOT,OlegHahm/RIOT,basilfx/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,TobiasFredersdorf/RIOT,Ell-i/RIOT,immesys/RiSyn,thomaseichinger/RIOT,kerneltask/RIOT,Hyungsin/RIOT-OS,neiljay/RIOT,LudwigOrtmann/RIOT,dailab/RIOT,katezilla/RIOT,jasonatran/RIOT,BytesGalore/RIOT,lazytech-org/RIOT,josephnoir/RIOT,syin2/RIOT,gautric/RIOT,thomaseichinger/RIOT,biboc/RIOT,beurdouche/RIOT,Ell-i/RIOT,roberthartung/RIOT,kaspar030/RIOT,smlng/RIOT,avmelnikoff/RIOT,toonst/RIOT,neiljay/RIOT,x3ro/RIOT,backenklee/RIOT,x3ro/RIOT,x3ro/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,roberthartung/RIOT,dailab/RIOT,gautric/RIOT,kaleb-himes/RIOT,jfischer-phytec-iot/RIOT,dailab/RIOT,kbumsik/RIOT,neumodisch/RIOT,LudwigKnuepfer/RIOT,kYc0o/RIOT,kb2ma/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,miri64/RIOT,kbumsik/RIOT,authmillenon/RIOT,mfrey/RIOT,adjih/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,plushvoxel/RIOT,katezilla/RIOT,ks156/RIOT,toonst/RIOT,josephnoir/RIOT,ks156/RIOT,ks156/RIOT,katezilla/RIOT,dkm/RIOT,rfuentess/RIOT,Ell-i/RIOT,beurdouche/RIOT,lazytech-org/RIOT,josephnoir/RIOT,neumodisch/RIOT,miri64/RIOT,beurdouche/RIOT,avmelnikoff/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,neiljay/RIOT,jfischer-phytec-iot/RIOT,neumodisch/RIOT,katezilla/RIOT,x3ro/RIOT,cladmi/RIOT,neumodisch/RIOT,mtausig/RIOT,kbumsik/RIOT,syin2/RIOT,gebart/RIOT,LudwigOrtmann/RIOT,A-Paul/RIOT,adrianghc/RIOT,mtausig/RIOT,aeneby/RIOT,avmelnikoff/RIOT,LudwigKnuepfer/RIOT,jasonatran/RIOT,dailab/RIOT,kaspar030/RIOT,yogo1212/RIOT,kbumsik/RIOT,roberthartung/RIOT,adjih/RIOT,thomaseichinger/RIOT,TobiasFredersdorf/RIOT,Ell-i/RIOT,hamilton-mote/RIOT-OS,biboc/RIOT,gebart/RIOT,kb2ma/RIOT,basilfx/RIOT,jbeyerstedt/RIOT-OTA-update,jasonatran/RIOT,yogo1212/RIOT,mtausig/RIOT,toonst/RIOT,backenklee/RIOT,basilfx/RIOT,TobiasFredersdorf/RIOT,beurdouche/RIOT,kaleb-himes/RIOT,kaspar030/RIOT,miri64/RIOT,adjih/RIOT,syin2/RIOT,authmillenon/RIOT,Josar/RIOT,mfrey/RIOT,RIOT-OS/RIOT,immesys/RiSyn,biboc/RIOT,plushvoxel/RIOT,basilfx/RIOT,cladmi/RIOT,aeneby/RIOT,kerneltask/RIOT,roberthartung/RIOT,kaspar030/RIOT,hamilton-mote/RIOT-OS,RIOT-OS/RIOT,immesys/RiSyn,smlng/RIOT,kaleb-himes/RIOT,roberthartung/RIOT,adrianghc/RIOT,kaspar030/RIOT,smlng/RIOT,kerneltask/RIOT,jbeyerstedt/RIOT-OTA-update,neiljay/RIOT,Josar/RIOT,dkm/RIOT,hamilton-mote/RIOT-OS,Hyungsin/RIOT-OS,immesys/RiSyn,authmillenon/RIOT,ant9000/RIOT,BytesGalore/RIOT,ks156/RIOT,LudwigKnuepfer/RIOT,kYc0o/RIOT,biboc/RIOT,dkm/RIOT,jbeyerstedt/RIOT-OTA-update,OTAkeys/RIOT,syin2/RIOT,kYc0o/RIOT,josephnoir/RIOT,backenklee/RIOT,gebart/RIOT,Hyungsin/RIOT-OS,LudwigKnuepfer/RIOT,adrianghc/RIOT,jasonatran/RIOT,gautric/RIOT,thomaseichinger/RIOT,Ell-i/RIOT,miri64/RIOT,gebart/RIOT,adjih/RIOT,dailab/RIOT,Josar/RIOT,OTAkeys/RIOT,ant9000/RIOT,mfrey/RIOT,hamilton-mote/RIOT-OS,smlng/RIOT,jasonatran/RIOT,mtausig/RIOT,BytesGalore/RIOT,TobiasFredersdorf/RIOT,OlegHahm/RIOT,jbeyerstedt/RIOT-OTA-update,kb2ma/RIOT