Added TextBox to the widget documentation.
Added TextBox to the widget documentation.

xplv/qtile,kopchik/qtile,kiniou/qtile,kseistrup/qtile,qtile/qtile,farebord/qtile,rxcomm/qtile,jdowner/qtile,frostidaho/qtile,xplv/qtile,farebord/qtile,soulchainer/qtile,zordsdavini/qtile,cortesi/qtile,apinsard/qtile,zordsdavini/qtile,ramnes/qtile,himaaaatti/qtile,kynikos/qtile,aniruddhkanojia/qtile,kiniou/qtile,kseistrup/qtile,qtile/qtile,kynikos/qtile,dequis/qtile,kopchik/qtile,nxnfufunezn/qtile,de-vri-es/qtile,EndPointCorp/qtile,jdowner/qtile,ramnes/qtile,w1ndy/qtile,tych0/qtile,nxnfufunezn/qtile,EndPointCorp/qtile,encukou/qtile,dequis/qtile,de-vri-es/qtile,StephenBarnes/qtile,tych0/qtile,andrewyoung1991/qtile,aniruddhkanojia/qtile,flacjacket/qtile,soulchainer/qtile,andrewyoung1991/qtile,cortesi/qtile,flacjacket/qtile,apinsard/qtile,encukou/qtile,rxcomm/qtile,frostidaho/qtile,w1ndy/qtile,StephenBarnes/qtile,himaaaatti/qtile