Add labels to definitions table
Add labels to definitions table

Change * symbol for labels with text. Add `thead` component to fix table border top.

yvonnewilson/docs,khorne3/docs,jeffreylees/docs,jeffreylees/docs,yvonnewilson/docs,yvonnewilson/docs,khorne3/docs,jeffreylees/docs,auth0/docs,auth0/docs,auth0/docs,khorne3/docs