Update folly/docs/Synchronized.md
Update folly/docs/Synchronized.md

Summary:
Fixed escaping bug where the `>` in `operator->` was
interpreted as starting a code block.  Folly github pull #15.

Test Plan: no

Reviewed By: njormrod@fb.com

FB internal diff: D582873

zhiweicai/folly,kernelim/folly,constantine001/folly,shaobz/folly,gavioto/folly,nickhen/folly,upsoft/folly,raphaelamorim/folly,leolujuyi/folly,mqeizi/folly,stonegithubs/folly,hongliangzhao/folly,clearlylin/folly,leolujuyi/folly,guker/folly,CJstar/folly,charsyam/folly,alexst07/folly,alexst07/folly,clearlinux/folly,PoisonBOx/folly,alexst07/folly,tomhughes/folly,guker/folly,reddit/folly,ykarlsbrun/folly,raphaelamorim/folly,PPC64/folly,yangjin-unique/folly,CJstar/folly,hongliangzhao/folly,romange/folly,facebook/folly,gaoyingie/folly,juniway/folly,clearlylin/folly,Orvid/folly,gavioto/folly,Eagle-X/folly,kernelim/folly,tempbottle/folly,SammyK/folly,arg0/folly,mqeizi/folly,cppfool/folly,xzmagic/folly,ykarlsbrun/folly,constantine001/folly,reddit/folly,brunomorishita/folly,leolujuyi/folly,loverszhaokai/folly,alexst07/folly,tomhughes/folly,constantine001/folly,fw1121/folly,kernelim/folly,KSreeHarsha/folly,Eagle-X/folly,project-zerus/folly,upsoft/folly,Hincoin/folly,loverszhaokai/folly,constantine001/folly,juniway/folly,renyinew/folly,zhiweicai/folly,rklabs/folly,shaobz/folly,juniway/folly,nickhen/folly,yangjin-unique/folly,PPC64/folly,cppfool/folly,yangjin-unique/folly,loversInJapan/folly,shaobz/folly,juniway/folly,floxard/folly,brunomorishita/folly,Orvid/folly,xzmagic/folly,unmeshvrije/C--,sakishum/folly,yangjin-unique/folly,alexst07/folly,KSreeHarsha/folly,bikong2/folly,ykarlsbrun/folly,hongliangzhao/folly,renyinew/folly,wildinto/folly,bobegir/folly,sakishum/folly,tempbottle/folly,colemancda/folly,shaobz/folly,project-zerus/folly,doctaweeks/folly,project-zerus/folly,unmeshvrije/C--,chjp2046/folly,chjp2046/folly,bikong2/folly,CJstar/folly,wildinto/folly,tempbottle/folly,wildinto/folly,fw1121/folly,stonegithubs/folly,constantine001/folly,cppfool/folly,upsoft/folly,unmeshvrije/C--,chjp2046/folly,renyinew/folly,KSreeHarsha/folly,loversInJapan/folly,gavioto/folly,romange/folly,facebook/folly,clearlinux/folly,fw1121/folly,fw1121/folly,wildinto/folly,arg0/folly,bowlofstew/folly,Eagle-X/folly,sonnyhu/folly,gaoyingie/folly,PPC64/folly,bobegir/folly,clearlinux/folly,PoisonBOx/folly,cole14/folly,brunomorishita/folly,Hincoin/folly,leolujuyi/folly,theiver9827/folly,gaoyingie/folly,facebook/folly,PoisonBOx/folly,reddit/folly,sonnyhu/folly,sonnyhu/folly,clearlylin/folly,project-zerus/folly,brunomorishita/folly,stonegithubs/folly,bowlofstew/folly,SeanRBurton/folly,clearlylin/folly,project-zerus/folly,tomhughes/folly,colemancda/folly,Orvid/folly,clearlinux/folly,Hincoin/folly,shaobz/folly,zhiweicai/folly,chjp2046/folly,stonegithubs/folly,bowlofstew/folly,PoisonBOx/folly,rklabs/folly,PPC64/folly,bobegir/folly,arg0/folly,bobegir/folly,mqeizi/folly,SeanRBurton/folly,Orvid/folly,sakishum/folly,tomhughes/folly,tempbottle/folly,SammyK/folly,stonegithubs/folly,cole14/folly,romange/folly,clearlinux/folly,nickhen/folly,gaoyingie/folly,theiver9827/folly,KSreeHarsha/folly,theiver9827/folly,colemancda/folly,bobegir/folly,guker/folly,raphaelamorim/folly,unmeshvrije/C--,floxard/folly,xzmagic/folly,charsyam/folly,doctaweeks/folly,loversInJapan/folly,SammyK/folly,renyinew/folly,colemancda/folly,Eagle-X/folly,sakishum/folly,bikong2/folly,Hincoin/folly,zhiweicai/folly,facebook/folly,bsampath/folly,SeanRBurton/folly,upsoft/folly,mqeizi/folly,kernelim/folly,hongliangzhao/folly,cppfool/folly,lifei/folly,xzmagic/folly,KSreeHarsha/folly,loverszhaokai/folly,gaoyingie/folly,leolujuyi/folly,SammyK/folly,lifei/folly,brunomorishita/folly,facebook/folly,ykarlsbrun/folly,SammyK/folly,CJstar/folly,floxard/folly,loverszhaokai/folly,ykarlsbrun/folly,unmeshvrije/C--,charsyam/folly,Eagle-X/folly,sakishum/folly,theiver9827/folly,kernelim/folly,unmeshvrije/C--,floxard/folly,rklabs/folly,hongliangzhao/folly,cole14/folly,SeanRBurton/folly,bikong2/folly,nickhen/folly,gavioto/folly,SeanRBurton/folly,raphaelamorim/folly,cole14/folly,guker/folly,arg0/folly,wildinto/folly,sonnyhu/folly,CJstar/folly,romange/folly,arg0/folly,nickhen/folly,PPC64/folly,doctaweeks/folly,cole14/folly,clearlylin/folly,bowlofstew/folly,bsampath/folly,romange/folly,rklabs/folly,gavioto/folly,yangjin-unique/folly,lifei/folly,rklabs/folly,bikong2/folly,guker/folly,Orvid/folly,doctaweeks/folly,doctaweeks/folly,theiver9827/folly,lifei/folly,bsampath/folly,chjp2046/folly,bsampath/folly,bsampath/folly,PoisonBOx/folly,Hincoin/folly,juniway/folly,loversInJapan/folly,loverszhaokai/folly,colemancda/folly,renyinew/folly,zhiweicai/folly,floxard/folly,reddit/folly,upsoft/folly,tempbottle/folly,xzmagic/folly,fw1121/folly,reddit/folly,loversInJapan/folly,charsyam/folly,lifei/folly,tomhughes/folly,mqeizi/folly,cppfool/folly,raphaelamorim/folly,sonnyhu/folly,bowlofstew/folly