Fix godoc.org homepage links
Fix godoc.org homepage links

- Change wiki link to new canonical link
- Change & to &amp; in links where applicable

chilts/gddo,makhov/gddo,rjeczalik/gddo,bigwhite/gddo,boxofrad/gddo,andrewstuart/gddo,tomheng/gddo,golang/gddo,zaphod-concur/gddo,nickrobinson/gddo,marcusolsson/gddo,andrewstuart/gddo,marcusolsson/gddo,zaphod-concur/gddo,apriendeau/gddo,shopkeep/gddo,segmentio/gddo,jeweljar/gddo,MarkMcCaskey/gddo,apriendeau/gddo,nickrobinson/gddo,margaery/gddo,gdey/gddo,SDGophers/gddo,bigwhite/gddo,bigwhite/gddo,jeweljar/gddo,shopkeep/gddo,jmhodges/gddo,sourcegraph/gddo,andrewstuart/gddo,SDGophers/gddo,rjeczalik/gddo,ChrisHines/gddo,jeweljar/gddo,MarkMcCaskey/gddo,margaery/gddo,SDGophers/gddo,margaery/gddo,chilts/gddo,marcusolsson/gddo,boxofrad/gddo,jeweljar/gddo,andrewstuart/gddo,gdey/gddo,ChrisHines/gddo,jmhodges/gddo,segmentio/gddo,segmentio/gddo,rjeczalik/gddo,nickrobinson/gddo,tomheng/gddo,bigwhite/gddo,chilts/gddo,MarkMcCaskey/gddo,tomheng/gddo,SDGophers/gddo,makhov/gddo,boxofrad/gddo,tomheng/gddo,sourcegraph/gddo,rjeczalik/gddo,MarkMcCaskey/gddo,ChrisHines/gddo,shopkeep/gddo,apriendeau/gddo,gdey/gddo,golang/gddo,marcusolsson/gddo,segmentio/gddo,nickrobinson/gddo,golang/gddo,landaire/gddo,margaery/gddo,boxofrad/gddo,shopkeep/gddo,landaire/gddo,zaphod-concur/gddo,zaphod-concur/gddo,sourcegraph/gddo,ChrisHines/gddo,landaire/gddo,makhov/gddo,landaire/gddo,chilts/gddo,jmhodges/gddo,jmhodges/gddo,apriendeau/gddo,sourcegraph/gddo,golang/gddo,makhov/gddo,gdey/gddo