[changelog] Fix md links
[changelog] Fix md links

[skip ci]

indeedops/dd-agent,indeedops/dd-agent,Wattpad/dd-agent,Wattpad/dd-agent,manolama/dd-agent,indeedops/dd-agent,jyogi/purvar-agent,cberry777/dd-agent,Wattpad/dd-agent,cberry777/dd-agent,cberry777/dd-agent,indeedops/dd-agent,takus/dd-agent,takus/dd-agent,takus/dd-agent,cberry777/dd-agent,manolama/dd-agent,cberry777/dd-agent,jyogi/purvar-agent,Wattpad/dd-agent,indeedops/dd-agent,takus/dd-agent,jyogi/purvar-agent,manolama/dd-agent,manolama/dd-agent,manolama/dd-agent,Wattpad/dd-agent,takus/dd-agent,jyogi/purvar-agent,jyogi/purvar-agent