Rollup merge of #25114 - michaelsproul:error-markdown, r=alexcrichton
Rollup merge of #25114 - michaelsproul:error-markdown, r=alexcrichton

I've added backticks in a few places to ensure correct highlighting in the HTML output (cf #25062). 

Other changes include:

* Remove use of `1.` and `2.` separated by a code block as this was being rendered as two separate lists beginning at 1.
* Correct the spelling of successful in two places (from "succesful").

Other changes are a result of reflowing text to stay within the 80 character limit.

zubron/rust,jroesch/rust,zachwick/rust,graydon/rust,l0kod/rust,kwantam/rust,omasanori/rust,zachwick/rust,reem/rust,andars/rust,aepsil0n/rust,dwillmer/rust,robertg/rust,rohitjoshi/rust,victorvde/rust,pshc/rust,victorvde/rust,KokaKiwi/rust,aidancully/rust,dwillmer/rust,zubron/rust,andars/rust,l0kod/rust,TheNeikos/rust,nwin/rust,nwin/rust,mvdnes/rust,GBGamer/rust,rohitjoshi/rust,pshc/rust,kwantam/rust,carols10cents/rust,jroesch/rust,carols10cents/rust,andars/rust,gifnksm/rust,mvdnes/rust,jashank/rust,philyoon/rust,graydon/rust,GBGamer/rust,krzysz00/rust,jashank/rust,XMPPwocky/rust,victorvde/rust,ejjeong/rust,dwillmer/rust,aneeshusa/rust,mdinger/rust,aneeshusa/rust,XMPPwocky/rust,cllns/rust,krzysz00/rust,krzysz00/rust,dwillmer/rust,pelmers/rust,philyoon/rust,aidancully/rust,dwillmer/rust,jroesch/rust,reem/rust,reem/rust,GBGamer/rust,robertg/rust,l0kod/rust,GBGamer/rust,omasanori/rust,seanrivera/rust,mdinger/rust,pelmers/rust,jroesch/rust,GBGamer/rust,mihneadb/rust,reem/rust,KokaKiwi/rust,TheNeikos/rust,mvdnes/rust,pelmers/rust,aepsil0n/rust,XMPPwocky/rust,vhbit/rust,mihneadb/rust,pshc/rust,mdinger/rust,aidancully/rust,l0kod/rust,victorvde/rust,krzysz00/rust,omasanori/rust,cllns/rust,mihneadb/rust,victorvde/rust,aepsil0n/rust,TheNeikos/rust,gifnksm/rust,vhbit/rust,kwantam/rust,vhbit/rust,krzysz00/rust,zachwick/rust,vhbit/rust,jroesch/rust,dwillmer/rust,robertg/rust,TheNeikos/rust,zachwick/rust,jashank/rust,pshc/rust,mdinger/rust,vhbit/rust,mvdnes/rust,gifnksm/rust,aneeshusa/rust,aepsil0n/rust,dwillmer/rust,cllns/rust,sae-bom/rust,seanrivera/rust,mvdnes/rust,pshc/rust,zachwick/rust,kwantam/rust,jroesch/rust,seanrivera/rust,pelmers/rust,zubron/rust,aneeshusa/rust,rohitjoshi/rust,cllns/rust,jashank/rust,seanrivera/rust,XMPPwocky/rust,jashank/rust,philyoon/rust,GBGamer/rust,sae-bom/rust,mihneadb/rust,vhbit/rust,mihneadb/rust,philyoon/rust,nwin/rust,philyoon/rust,KokaKiwi/rust,GBGamer/rust,jashank/rust,sae-bom/rust,nwin/rust,cllns/rust,carols10cents/rust,jashank/rust,omasanori/rust,aidancully/rust,graydon/rust,andars/rust,zubron/rust,jroesch/rust,zubron/rust,ejjeong/rust,aidancully/rust,ejjeong/rust,zubron/rust,carols10cents/rust,graydon/rust,pshc/rust,XMPPwocky/rust,cllns/rust,TheNeikos/rust,TheNeikos/rust,andars/rust,reem/rust,l0kod/rust,pshc/rust,robertg/rust,robertg/rust,KokaKiwi/rust,rohitjoshi/rust,philyoon/rust,nwin/rust,XMPPwocky/rust,l0kod/rust,zubron/rust,mihneadb/rust,pelmers/rust,nwin/rust,sae-bom/rust,nwin/rust,pelmers/rust,mdinger/rust,ejjeong/rust,rohitjoshi/rust,zachwick/rust,jashank/rust,rohitjoshi/rust,pshc/rust,ejjeong/rust,dwillmer/rust,aepsil0n/rust,kwantam/rust,aepsil0n/rust,zubron/rust,seanrivera/rust,gifnksm/rust,carols10cents/rust,aneeshusa/rust,nwin/rust,gifnksm/rust,gifnksm/rust,sae-bom/rust,aidancully/rust,victorvde/rust,robertg/rust,sae-bom/rust,aneeshusa/rust,reem/rust,mvdnes/rust,jroesch/rust,ejjeong/rust,KokaKiwi/rust,graydon/rust,seanrivera/rust,KokaKiwi/rust,vhbit/rust,omasanori/rust,graydon/rust,carols10cents/rust,l0kod/rust,mdinger/rust,GBGamer/rust,andars/rust,kwantam/rust,krzysz00/rust,omasanori/rust,l0kod/rust,vhbit/rust