Fix link to CoreFX Performance Guidelines
Fix link to CoreFX Performance Guidelines

This link currently returns a 404 error.

It appears to be one of several links broken by some of the CoreFX
documentation having been moved into the new `coding-guidelines`
subdirectory.
kyulee1/coreclr,wateret/coreclr,wtgodbe/coreclr,shahid-pk/coreclr,krk/coreclr,shahid-pk/coreclr,krytarowski/coreclr,ktos/coreclr,roncain/coreclr,jhendrixMSFT/coreclr,chaos7theory/coreclr,AlfredoMS/coreclr,qiudesong/coreclr,alexperovich/coreclr,tijoytom/coreclr,russellhadley/coreclr,SlavaRa/coreclr,krytarowski/coreclr,SlavaRa/coreclr,LLITCHEV/coreclr,botaberg/coreclr,orthoxerox/coreclr,benpye/coreclr,sjsinju/coreclr,cmckinsey/coreclr,krytarowski/coreclr,mokchhya/coreclr,ramarag/coreclr,Djuffin/coreclr,LLITCHEV/coreclr,zmaruo/coreclr,OryJuVog/coreclr,bartonjs/coreclr,OryJuVog/coreclr,botaberg/coreclr,ruben-ayrapetyan/coreclr,AlfredoMS/coreclr,bitcrazed/coreclr,vinnyrom/coreclr,ragmani/coreclr,perfectphase/coreclr,yizhang82/coreclr,dasMulli/coreclr,botaberg/coreclr,martinwoodward/coreclr,iamjasonp/coreclr,sperling/coreclr,MCGPPeters/coreclr,dasMulli/coreclr,neurospeech/coreclr,cshung/coreclr,dasMulli/coreclr,ramarag/coreclr,sagood/coreclr,krk/coreclr,dasMulli/coreclr,bartonjs/coreclr,chaos7theory/coreclr,stormleoxia/coreclr,sejongoh/coreclr,qiudesong/coreclr,KrzysztofCwalina/coreclr,Samana/coreclr,taylorjonl/coreclr,russellhadley/coreclr,KrzysztofCwalina/coreclr,mocsy/coreclr,jamesqo/coreclr,krytarowski/coreclr,mskvortsov/coreclr,stormleoxia/coreclr,Godin/coreclr,xoofx/coreclr,hseok-oh/coreclr,cshung/coreclr,manu-silicon/coreclr,wtgodbe/coreclr,ktos/coreclr,AlfredoMS/coreclr,mmitche/coreclr,Sridhar-MS/coreclr,bartdesmet/coreclr,AlexGhiondea/coreclr,sperling/coreclr,tijoytom/coreclr,hseok-oh/coreclr,blackdwarf/coreclr,perfectphase/coreclr,Alcaro/coreclr,Sridhar-MS/coreclr,sagood/coreclr,serenabenny/coreclr,Godin/coreclr,wateret/coreclr,chuck-mitchell/coreclr,chrishaly/coreclr,chuck-mitchell/coreclr,blackdwarf/coreclr,bartonjs/coreclr,xoofx/coreclr,bartdesmet/coreclr,cmckinsey/coreclr,krixalis/coreclr,YongseopKim/coreclr,bitcrazed/coreclr,LLITCHEV/coreclr,pgavlin/coreclr,Djuffin/coreclr,schellap/coreclr,russellhadley/coreclr,jamesqo/coreclr,JonHanna/coreclr,ericeil/coreclr,bartonjs/coreclr,andschwa/coreclr,mmitche/coreclr,orthoxerox/coreclr,chaos7theory/coreclr,JonHanna/coreclr,orthoxerox/coreclr,rartemev/coreclr,Djuffin/coreclr,Lucrecious/coreclr,iamjasonp/coreclr,wateret/coreclr,Sridhar-MS/coreclr,cydhaselton/coreclr,stormleoxia/coreclr,Lucrecious/coreclr,benpye/coreclr,mokchhya/coreclr,parjong/coreclr,mokchhya/coreclr,geertdoornbos/coreclr,russellhadley/coreclr,serenabenny/coreclr,bitcrazed/coreclr,KrzysztofCwalina/coreclr,pgavlin/coreclr,manu-silicon/coreclr,sjsinju/coreclr,dasMulli/coreclr,Lucrecious/coreclr,Samana/coreclr,benpye/coreclr,KrzysztofCwalina/coreclr,martinwoodward/coreclr,kyulee1/coreclr,sejongoh/coreclr,mskvortsov/coreclr,cmckinsey/coreclr,wkchoy74/coreclr,sejongoh/coreclr,naamunds/coreclr,swgillespie/coreclr,krixalis/coreclr,josteink/coreclr,yizhang82/coreclr,Dmitry-Me/coreclr,JosephTremoulet/coreclr,benpye/coreclr,pgavlin/coreclr,kyulee1/coreclr,ZhichengZhu/coreclr,alexperovich/coreclr,wateret/coreclr,SlavaRa/coreclr,Dmitry-Me/coreclr,sejongoh/coreclr,mokchhya/coreclr,dasMulli/coreclr,naamunds/coreclr,alexperovich/coreclr,krytarowski/coreclr,gkhanna79/coreclr,ktos/coreclr,cshung/coreclr,benpye/coreclr,ragmani/coreclr,naamunds/coreclr,shahid-pk/coreclr,josteink/coreclr,sjsinju/coreclr,KrzysztofCwalina/coreclr,roncain/coreclr,YongseopKim/coreclr,JonHanna/coreclr,yizhang82/coreclr,ZhichengZhu/coreclr,zmaruo/coreclr,wkchoy74/coreclr,orthoxerox/coreclr,cydhaselton/coreclr,wtgodbe/coreclr,qiudesong/coreclr,sagood/coreclr,mocsy/coreclr,Lucrecious/coreclr,MCGPPeters/coreclr,chuck-mitchell/coreclr,James-Ko/coreclr,JosephTremoulet/coreclr,josteink/coreclr,James-Ko/coreclr,YongseopKim/coreclr,chrishaly/coreclr,ramarag/coreclr,manu-silicon/coreclr,Lucrecious/coreclr,sagood/coreclr,parjong/coreclr,ZhichengZhu/coreclr,MCGPPeters/coreclr,dpodder/coreclr,naamunds/coreclr,James-Ko/coreclr,KrzysztofCwalina/coreclr,mmitche/coreclr,AlexGhiondea/coreclr,cydhaselton/coreclr,taylorjonl/coreclr,mmitche/coreclr,Godin/coreclr,serenabenny/coreclr,gkhanna79/coreclr,alexperovich/coreclr,JonHanna/coreclr,alexperovich/coreclr,OryJuVog/coreclr,jamesqo/coreclr,mmitche/coreclr,chrishaly/coreclr,hseok-oh/coreclr,jhendrixMSFT/coreclr,ramarag/coreclr,swgillespie/coreclr,bartonjs/coreclr,sjsinju/coreclr,bartdesmet/coreclr,AlexGhiondea/coreclr,mocsy/coreclr,manu-silicon/coreclr,OryJuVog/coreclr,cmckinsey/coreclr,taylorjonl/coreclr,kyulee1/coreclr,benpye/coreclr,rartemev/coreclr,Djuffin/coreclr,ktos/coreclr,ZhichengZhu/coreclr,jhendrixMSFT/coreclr,mskvortsov/coreclr,qiudesong/coreclr,cshung/coreclr,tijoytom/coreclr,ktos/coreclr,blackdwarf/coreclr,yeaicc/coreclr,ruben-ayrapetyan/coreclr,russellhadley/coreclr,andschwa/coreclr,taylorjonl/coreclr,sejongoh/coreclr,neurospeech/coreclr,mocsy/coreclr,Godin/coreclr,geertdoornbos/coreclr,Samana/coreclr,gkhanna79/coreclr,josteink/coreclr,YongseopKim/coreclr,yizhang82/coreclr,wtgodbe/coreclr,James-Ko/coreclr,chrishaly/coreclr,Alcaro/coreclr,chaos7theory/coreclr,ericeil/coreclr,andschwa/coreclr,krixalis/coreclr,hseok-oh/coreclr,shahid-pk/coreclr,bartdesmet/coreclr,poizan42/coreclr,naamunds/coreclr,qiudesong/coreclr,cmckinsey/coreclr,JosephTremoulet/coreclr,wkchoy74/coreclr,Sridhar-MS/coreclr,dpodder/coreclr,Alcaro/coreclr,swgillespie/coreclr,sperling/coreclr,serenabenny/coreclr,bartdesmet/coreclr,manu-silicon/coreclr,ZhichengZhu/coreclr,swgillespie/coreclr,jamesqo/coreclr,AlfredoMS/coreclr,Godin/coreclr,MCGPPeters/coreclr,taylorjonl/coreclr,chaos7theory/coreclr,benpye/coreclr,ragmani/coreclr,YongseopKim/coreclr,Djuffin/coreclr,mocsy/coreclr,cshung/coreclr,schellap/coreclr,poizan42/coreclr,wtgodbe/coreclr,stormleoxia/coreclr,vinnyrom/coreclr,jhendrixMSFT/coreclr,JonHanna/coreclr,gkhanna79/coreclr,LLITCHEV/coreclr,vinnyrom/coreclr,cydhaselton/coreclr,mskvortsov/coreclr,Alcaro/coreclr,Samana/coreclr,ericeil/coreclr,Sridhar-MS/coreclr,xoofx/coreclr,jhendrixMSFT/coreclr,ramarag/coreclr,iamjasonp/coreclr,rartemev/coreclr,Sridhar-MS/coreclr,Lucrecious/coreclr,yizhang82/coreclr,ericeil/coreclr,jamesqo/coreclr,mokchhya/coreclr,mokchhya/coreclr,vinnyrom/coreclr,sperling/coreclr,ragmani/coreclr,chuck-mitchell/coreclr,roncain/coreclr,gkhanna79/coreclr,poizan42/coreclr,SlavaRa/coreclr,kyulee1/coreclr,taylorjonl/coreclr,wkchoy74/coreclr,SlavaRa/coreclr,cmckinsey/coreclr,blackdwarf/coreclr,iamjasonp/coreclr,andschwa/coreclr,chrishaly/coreclr,mskvortsov/coreclr,parjong/coreclr,cydhaselton/coreclr,swgillespie/coreclr,alexperovich/coreclr,pgavlin/coreclr,Godin/coreclr,krk/coreclr,OryJuVog/coreclr,hseok-oh/coreclr,geertdoornbos/coreclr,perfectphase/coreclr,James-Ko/coreclr,jhendrixMSFT/coreclr,manu-silicon/coreclr,rartemev/coreclr,ericeil/coreclr,mocsy/coreclr,dpodder/coreclr,schellap/coreclr,Djuffin/coreclr,rartemev/coreclr,MCGPPeters/coreclr,poizan42/coreclr,josteink/coreclr,taylorjonl/coreclr,schellap/coreclr,krixalis/coreclr,zmaruo/coreclr,tijoytom/coreclr,cmckinsey/coreclr,wkchoy74/coreclr,tijoytom/coreclr,AlfredoMS/coreclr,shahid-pk/coreclr,yizhang82/coreclr,LLITCHEV/coreclr,xoofx/coreclr,roncain/coreclr,manu-silicon/coreclr,yeaicc/coreclr,bitcrazed/coreclr,KrzysztofCwalina/coreclr,blackdwarf/coreclr,stormleoxia/coreclr,andschwa/coreclr,ZhichengZhu/coreclr,geertdoornbos/coreclr,geertdoornbos/coreclr,xoofx/coreclr,chuck-mitchell/coreclr,cydhaselton/coreclr,zmaruo/coreclr,SlavaRa/coreclr,schellap/coreclr,AlexGhiondea/coreclr,krk/coreclr,sjsinju/coreclr,jamesqo/coreclr,gkhanna79/coreclr,Dmitry-Me/coreclr,JosephTremoulet/coreclr,perfectphase/coreclr,sperling/coreclr,hseok-oh/coreclr,qiudesong/coreclr,wkchoy74/coreclr,LLITCHEV/coreclr,neurospeech/coreclr,stormleoxia/coreclr,Dmitry-Me/coreclr,tijoytom/coreclr,blackdwarf/coreclr,neurospeech/coreclr,swgillespie/coreclr,blackdwarf/coreclr,serenabenny/coreclr,AlexGhiondea/coreclr,ruben-ayrapetyan/coreclr,ruben-ayrapetyan/coreclr,ktos/coreclr,yeaicc/coreclr,naamunds/coreclr,Dmitry-Me/coreclr,Samana/coreclr,iamjasonp/coreclr,geertdoornbos/coreclr,josteink/coreclr,vinnyrom/coreclr,JosephTremoulet/coreclr,neurospeech/coreclr,yeaicc/coreclr,JonHanna/coreclr,poizan42/coreclr,Alcaro/coreclr,ramarag/coreclr,wtgodbe/coreclr,sperling/coreclr,wkchoy74/coreclr,jhendrixMSFT/coreclr,andschwa/coreclr,dasMulli/coreclr,sagood/coreclr,sagood/coreclr,mocsy/coreclr,mmitche/coreclr,krixalis/coreclr,chuck-mitchell/coreclr,krixalis/coreclr,YongseopKim/coreclr,bitcrazed/coreclr,dpodder/coreclr,naamunds/coreclr,ragmani/coreclr,geertdoornbos/coreclr,roncain/coreclr,Samana/coreclr,LLITCHEV/coreclr,Alcaro/coreclr,martinwoodward/coreclr,bartonjs/coreclr,botaberg/coreclr,Lucrecious/coreclr,AlexGhiondea/coreclr,roncain/coreclr,botaberg/coreclr,martinwoodward/coreclr,perfectphase/coreclr,krk/coreclr,swgillespie/coreclr,schellap/coreclr,serenabenny/coreclr,James-Ko/coreclr,rartemev/coreclr,chuck-mitchell/coreclr,roncain/coreclr,ruben-ayrapetyan/coreclr,bitcrazed/coreclr,dpodder/coreclr,pgavlin/coreclr,bartdesmet/coreclr,krytarowski/coreclr,poizan42/coreclr,shahid-pk/coreclr,ramarag/coreclr,mokchhya/coreclr,Dmitry-Me/coreclr,pgavlin/coreclr,JosephTremoulet/coreclr,yeaicc/coreclr,iamjasonp/coreclr,martinwoodward/coreclr,andschwa/coreclr,ericeil/coreclr,mskvortsov/coreclr,yeaicc/coreclr,parjong/coreclr,ragmani/coreclr,russellhadley/coreclr,ZhichengZhu/coreclr,martinwoodward/coreclr,orthoxerox/coreclr,martinwoodward/coreclr,Dmitry-Me/coreclr,sjsinju/coreclr,bitcrazed/coreclr,sejongoh/coreclr,bartonjs/coreclr,josteink/coreclr,shahid-pk/coreclr,kyulee1/coreclr,stormleoxia/coreclr,dpodder/coreclr,OryJuVog/coreclr,cshung/coreclr,zmaruo/coreclr,Godin/coreclr,bartdesmet/coreclr,zmaruo/coreclr,chaos7theory/coreclr,AlfredoMS/coreclr,vinnyrom/coreclr,xoofx/coreclr,parjong/coreclr,MCGPPeters/coreclr,sperling/coreclr,vinnyrom/coreclr,wateret/coreclr,yeaicc/coreclr,parjong/coreclr,sejongoh/coreclr,perfectphase/coreclr,ktos/coreclr,ruben-ayrapetyan/coreclr,krk/coreclr,chrishaly/coreclr,schellap/coreclr,orthoxerox/coreclr,neurospeech/coreclr,botaberg/coreclr,wateret/coreclr