net/gcoap: Update doc for confirmable message
net/gcoap: Update doc for confirmable message

RIOT-OS/RIOT,kYc0o/RIOT,BytesGalore/RIOT,aeneby/RIOT,A-Paul/RIOT,kbumsik/RIOT,smlng/RIOT,LudwigKnuepfer/RIOT,rfuentess/RIOT,jasonatran/RIOT,LudwigKnuepfer/RIOT,x3ro/RIOT,neiljay/RIOT,RIOT-OS/RIOT,authmillenon/RIOT,rfuentess/RIOT,toonst/RIOT,rfuentess/RIOT,lazytech-org/RIOT,josephnoir/RIOT,ant9000/RIOT,toonst/RIOT,cladmi/RIOT,ant9000/RIOT,aeneby/RIOT,josephnoir/RIOT,kYc0o/RIOT,neiljay/RIOT,RIOT-OS/RIOT,mfrey/RIOT,lazytech-org/RIOT,OlegHahm/RIOT,LudwigKnuepfer/RIOT,kYc0o/RIOT,mfrey/RIOT,avmelnikoff/RIOT,RIOT-OS/RIOT,ant9000/RIOT,aeneby/RIOT,jasonatran/RIOT,LudwigOrtmann/RIOT,gebart/RIOT,kYc0o/RIOT,rfuentess/RIOT,yogo1212/RIOT,A-Paul/RIOT,avmelnikoff/RIOT,RIOT-OS/RIOT,cladmi/RIOT,biboc/RIOT,ant9000/RIOT,biboc/RIOT,OTAkeys/RIOT,authmillenon/RIOT,gebart/RIOT,gebart/RIOT,kaspar030/RIOT,A-Paul/RIOT,LudwigKnuepfer/RIOT,kaspar030/RIOT,OTAkeys/RIOT,kYc0o/RIOT,smlng/RIOT,OlegHahm/RIOT,smlng/RIOT,toonst/RIOT,avmelnikoff/RIOT,kaspar030/RIOT,A-Paul/RIOT,miri64/RIOT,authmillenon/RIOT,basilfx/RIOT,kaspar030/RIOT,basilfx/RIOT,gebart/RIOT,BytesGalore/RIOT,jasonatran/RIOT,avmelnikoff/RIOT,lazytech-org/RIOT,BytesGalore/RIOT,biboc/RIOT,jasonatran/RIOT,gebart/RIOT,yogo1212/RIOT,neiljay/RIOT,lazytech-org/RIOT,LudwigOrtmann/RIOT,kaspar030/RIOT,miri64/RIOT,yogo1212/RIOT,mfrey/RIOT,OlegHahm/RIOT,mtausig/RIOT,neiljay/RIOT,x3ro/RIOT,A-Paul/RIOT,yogo1212/RIOT,aeneby/RIOT,BytesGalore/RIOT,authmillenon/RIOT,authmillenon/RIOT,OlegHahm/RIOT,yogo1212/RIOT,smlng/RIOT,basilfx/RIOT,LudwigOrtmann/RIOT,x3ro/RIOT,josephnoir/RIOT,kbumsik/RIOT,mfrey/RIOT,cladmi/RIOT,cladmi/RIOT,miri64/RIOT,BytesGalore/RIOT,biboc/RIOT,cladmi/RIOT,miri64/RIOT,LudwigOrtmann/RIOT,kbumsik/RIOT,mfrey/RIOT,josephnoir/RIOT,biboc/RIOT,toonst/RIOT,basilfx/RIOT,mtausig/RIOT,miri64/RIOT,OTAkeys/RIOT,OlegHahm/RIOT,LudwigKnuepfer/RIOT,LudwigOrtmann/RIOT,authmillenon/RIOT,rfuentess/RIOT,basilfx/RIOT,smlng/RIOT,x3ro/RIOT,avmelnikoff/RIOT,ant9000/RIOT,jasonatran/RIOT,kbumsik/RIOT,aeneby/RIOT,neiljay/RIOT,mtausig/RIOT,kbumsik/RIOT,mtausig/RIOT,lazytech-org/RIOT,OTAkeys/RIOT,toonst/RIOT,josephnoir/RIOT,OTAkeys/RIOT,mtausig/RIOT,LudwigOrtmann/RIOT,yogo1212/RIOT,x3ro/RIOT