docs: cleanup errors document
docs: cleanup errors document

Zirpon/tchannel,chenwenbin928/tchannel,RyanTech/tchannel,sasa233/tchannel,benfleis/tchannel,savaki/tchannel,RyanTech/tchannel,savaki/tchannel,hustxiaoc/tchannel,benfleis/tchannel,vanloswang/tchannel,chenwenbin928/tchannel,chenwenbin928/tchannel,Zirpon/tchannel,bunnyblue/tchannel,hustxiaoc/tchannel,Zirpon/tchannel,bunnyblue/tchannel,hustxiaoc/tchannel,sasa233/tchannel,i/tchannel,i/tchannel,savaki/tchannel,vanloswang/tchannel,benfleis/tchannel,i/tchannel,sasa233/tchannel,bunnyblue/tchannel,RyanTech/tchannel,vanloswang/tchannel