Update categories.md
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Aonepathan/docs,katieporter/docs,Aonepathan/docs,hardikjain29/docs,katieporter/docs,L2G/docs,L2G/docs,taz77/docs,Zaftula/docs,jacobmovingfwd/docs,Ranhiru/docs,katieporter/docs,awwa/docs,bogdanboss/docs,hardikjain29/docs,Aonepathan/docs,bogdanboss/docs,awwa/docs,awwa/docs,Aonepathan/docs,Ranhiru/docs,jacobmovingfwd/docs,hardikjain29/docs,hardikjain29/docs,sendgrid/docs,jacobmovingfwd/docs,jacobmovingfwd/docs,sendgrid/docs,Ranhiru/docs,L2G/docs,taz77/docs,Zaftula/docs,Whatthefoxsays/docs,L2G/docs,L2G/docs,bogdanboss/docs,Ranhiru/docs,ksigler7/docs,bogdanboss/docs,Aonepathan/docs,taz77/docs,hardikjain29/docs,Zaftula/docs,sendgrid/docs,ksigler7/docs,taz77/docs,taz77/docs,Ranhiru/docs,bogdanboss/docs,Zaftula/docs,jacobmovingfwd/docs,ksigler7/docs,awwa/docs,Zaftula/docs,katieporter/docs,Whatthefoxsays/docs,awwa/docs,katieporter/docs,Whatthefoxsays/docs