Update the README with info about the new buildsys
Update the README with info about the new buildsys

Signed-off-by: Vicent Marti <6838a7c51796da15c3e6eae80ee6aba806e8818a@gmail.com>

nokiddin/libgit2,oaastest/libgit2,kenprice/libgit2,Aorjoa/libgit2_maked_lib,Aorjoa/libgit2_maked_lib,spraints/libgit2,claudelee/libgit2,chiayolin/libgit2,MrHacky/libgit2,whoisj/libgit2,jamieleecool/ptest,JIghtuse/libgit2,magnus98/TEST,zodiac/libgit2.js,jeffhostetler/public_libgit2,linquize/libgit2,falqas/libgit2,saurabhsuniljain/libgit2,amyvmiwei/libgit2,rcorre/libgit2,Tousiph/Demo1,ardumont/libgit2,mingyaaaa/libgit2,whoisj/libgit2,Aorjoa/libgit2_maked_lib,zodiac/libgit2.js,amyvmiwei/libgit2,Corillian/libgit2,sygool/libgit2,claudelee/libgit2,chiayolin/libgit2,claudelee/libgit2,Tousiph/Demo1,maxiaoqian/libgit2,mingyaaaa/libgit2,sim0629/libgit2,dleehr/libgit2,yongthecoder/libgit2,skabel/manguse,stewid/libgit2,Snazz2001/libgit2,mhp/libgit2,ardumont/libgit2,evhan/libgit2,mcanthony/libgit2,jeffhostetler/public_libgit2,sygool/libgit2,MrHacky/libgit2,dleehr/libgit2,raybrad/libit2,since2014/libgit2,mcanthony/libgit2,whoisj/libgit2,sim0629/libgit2,raybrad/libit2,nokiddin/libgit2,whoisj/libgit2,whoisj/libgit2,jamieleecool/ptest,stewid/libgit2,swisspol/DEMO-libgit2,Aorjoa/libgit2_maked_lib,iankronquist/libgit2,Corillian/libgit2,falqas/libgit2,Snazz2001/libgit2,linquize/libgit2,maxiaoqian/libgit2,swisspol/DEMO-libgit2,saurabhsuniljain/libgit2,JIghtuse/libgit2,iankronquist/libgit2,yosefhackmon/libgit2,kenprice/libgit2,nacho/libgit2,dleehr/libgit2,mrksrm/Mingijura,KTXSoftware/libgit2,jeffhostetler/public_libgit2,Corillian/libgit2,sim0629/libgit2,spraints/libgit2,amyvmiwei/libgit2,chiayolin/libgit2,JIghtuse/libgit2,claudelee/libgit2,mhp/libgit2,mingyaaaa/libgit2,mingyaaaa/libgit2,skabel/manguse,jflesch/libgit2-mariadb,mrksrm/Mingijura,Snazz2001/libgit2,swisspol/DEMO-libgit2,joshtriplett/libgit2,kissthink/libgit2,chiayolin/libgit2,claudelee/libgit2,jflesch/libgit2-mariadb,falqas/libgit2,joshtriplett/libgit2,yongthecoder/libgit2,leoyanggit/libgit2,ardumont/libgit2,oaastest/libgit2,t0xicCode/libgit2,amyvmiwei/libgit2,yongthecoder/libgit2,Tousiph/Demo1,joshtriplett/libgit2,spraints/libgit2,Snazz2001/libgit2,rcorre/libgit2,maxiaoqian/libgit2,kenprice/libgit2,leoyanggit/libgit2,rcorre/libgit2,mhp/libgit2,mcanthony/libgit2,nacho/libgit2,skabel/manguse,mhp/libgit2,mhp/libgit2,joshtriplett/libgit2,jeffhostetler/public_libgit2,raybrad/libit2,sim0629/libgit2,since2014/libgit2,maxiaoqian/libgit2,evhan/libgit2,t0xicCode/libgit2,MrHacky/libgit2,MrHacky/libgit2,leoyanggit/libgit2,saurabhsuniljain/libgit2,iankronquist/libgit2,JIghtuse/libgit2,Corillian/libgit2,spraints/libgit2,evhan/libgit2,kenprice/libgit2,stewid/libgit2,yosefhackmon/libgit2,maxiaoqian/libgit2,t0xicCode/libgit2,falqas/libgit2,magnus98/TEST,jamieleecool/ptest,raybrad/libit2,dleehr/libgit2,rcorre/libgit2,mcanthony/libgit2,leoyanggit/libgit2,claudelee/libgit2,jflesch/libgit2-mariadb,iankronquist/libgit2,chiayolin/libgit2,Tousiph/Demo1,saurabhsuniljain/libgit2,ardumont/libgit2,Corillian/libgit2,Corillian/libgit2,stewid/libgit2,kenprice/libgit2,t0xicCode/libgit2,mcanthony/libgit2,t0xicCode/libgit2,dleehr/libgit2,skabel/manguse,yosefhackmon/libgit2,JIghtuse/libgit2,falqas/libgit2,since2014/libgit2,yosefhackmon/libgit2,zodiac/libgit2.js,jflesch/libgit2-mariadb,Tousiph/Demo1,maxiaoqian/libgit2,swisspol/DEMO-libgit2,amyvmiwei/libgit2,rcorre/libgit2,nacho/libgit2,mingyaaaa/libgit2,joshtriplett/libgit2,saurabhsuniljain/libgit2,chiayolin/libgit2,mcanthony/libgit2,KTXSoftware/libgit2,jflesch/libgit2-mariadb,oaastest/libgit2,dleehr/libgit2,KTXSoftware/libgit2,swisspol/DEMO-libgit2,sygool/libgit2,linquize/libgit2,Snazz2001/libgit2,skabel/manguse,sim0629/libgit2,magnus98/TEST,linquize/libgit2,mingyaaaa/libgit2,Snazz2001/libgit2,JIghtuse/libgit2,magnus98/TEST,since2014/libgit2,kissthink/libgit2,KTXSoftware/libgit2,kissthink/libgit2,oaastest/libgit2,magnus98/TEST,sygool/libgit2,yosefhackmon/libgit2,leoyanggit/libgit2,since2014/libgit2,jeffhostetler/public_libgit2,kissthink/libgit2,jamieleecool/ptest,mrksrm/Mingijura,nokiddin/libgit2,jflesch/libgit2-mariadb,raybrad/libit2,evhan/libgit2,MrHacky/libgit2,stewid/libgit2,yongthecoder/libgit2,spraints/libgit2,kenprice/libgit2,saurabhsuniljain/libgit2,linquize/libgit2,nokiddin/libgit2,whoisj/libgit2,KTXSoftware/libgit2,ardumont/libgit2,mhp/libgit2,amyvmiwei/libgit2,KTXSoftware/libgit2,zodiac/libgit2.js,linquize/libgit2,mrksrm/Mingijura,joshtriplett/libgit2,sim0629/libgit2,yongthecoder/libgit2,stewid/libgit2,falqas/libgit2,swisspol/DEMO-libgit2,rcorre/libgit2,iankronquist/libgit2,skabel/manguse,kissthink/libgit2,mrksrm/Mingijura,Aorjoa/libgit2_maked_lib,nokiddin/libgit2,MrHacky/libgit2,leoyanggit/libgit2,oaastest/libgit2,since2014/libgit2,yosefhackmon/libgit2,spraints/libgit2,ardumont/libgit2,zodiac/libgit2.js,sygool/libgit2,kissthink/libgit2,yongthecoder/libgit2,nacho/libgit2,nokiddin/libgit2,jeffhostetler/public_libgit2,Tousiph/Demo1,t0xicCode/libgit2,sygool/libgit2,magnus98/TEST,iankronquist/libgit2,mrksrm/Mingijura,oaastest/libgit2