Add documentation for abbr in reST.
Add documentation for abbr in reST.

11craft/pelican,karlcow/pelican,ls2uper/pelican,catdog2/pelican,ingwinlu/pelican,TC01/pelican,karlcow/pelican,eevee/pelican,florianjacob/pelican,simonjj/pelican,Polyconseil/pelican,jo-tham/pelican,Summonee/pelican,arty-name/pelican,ls2uper/pelican,Rogdham/pelican,liyonghelpme/myBlog,kernc/pelican,talha131/pelican,ehashman/pelican,HyperGroups/pelican,Rogdham/pelican,garbas/pelican,douglaskastle/pelican,HyperGroups/pelican,sunzhongwei/pelican,51itclub/pelican,gymglish/pelican,crmackay/pelican,alexras/pelican,abrahamvarricatt/pelican,goerz/pelican,goerz/pelican,janaurka/git-debug-presentiation,jo-tham/pelican,kennethlyn/pelican,GiovanniMoretti/pelican,florianjacob/pelican,fbs/pelican,number5/pelican,talha131/pelican,deved69/pelican-1,btnpushnmunky/pelican,eevee/pelican,JeremyMorgan/pelican,11craft/pelican,GiovanniMoretti/pelican,UdeskDeveloper/pelican,liyonghelpme/myBlog,kernc/pelican,iurisilvio/pelican,TC01/pelican,janaurka/git-debug-presentiation,janaurka/git-debug-presentiation,Polyconseil/pelican,florianjacob/pelican,jimperio/pelican,rbarraud/pelican,lucasplus/pelican,deanishe/pelican,levanhien8/pelican,gymglish/pelican,farseerfc/pelican,iKevinY/pelican,Summonee/pelican,eevee/pelican,deved69/pelican-1,ehashman/pelican,karlcow/pelican,koobs/pelican,zackw/pelican,jvehent/pelican,avaris/pelican,btnpushnmunky/pelican,lazycoder-ru/pelican,catdog2/pelican,garbas/pelican,Scheirle/pelican,getpelican/pelican,levanhien8/pelican,jvehent/pelican,TC01/pelican,51itclub/pelican,jvehent/pelican,abrahamvarricatt/pelican,douglaskastle/pelican,Scheirle/pelican,UdeskDeveloper/pelican,lazycoder-ru/pelican,sunzhongwei/pelican,GiovanniMoretti/pelican,douglaskastle/pelican,treyhunner/pelican,Summonee/pelican,alexras/pelican,iurisilvio/pelican,Scheirle/pelican,garbas/pelican,liyonghelpme/myBlog,iKevinY/pelican,joetboole/pelican,simonjj/pelican,alexras/pelican,crmackay/pelican,rbarraud/pelican,liyonghelpme/myBlog,jimperio/pelican,getpelican/pelican,0xMF/pelican,levanhien8/pelican,deved69/pelican-1,treyhunner/pelican,kennethlyn/pelican,Rogdham/pelican,justinmayer/pelican,JeremyMorgan/pelican,liyonghelpme/myBlog,ehashman/pelican,lucasplus/pelican,number5/pelican,iurisilvio/pelican,sunzhongwei/pelican,goerz/pelican,lucasplus/pelican,Natim/pelican,rbarraud/pelican,ionelmc/pelican,ls2uper/pelican,joetboole/pelican,gymglish/pelican,51itclub/pelican,catdog2/pelican,UdeskDeveloper/pelican,avaris/pelican,zackw/pelican,number5/pelican,deanishe/pelican,crmackay/pelican,lazycoder-ru/pelican,btnpushnmunky/pelican,simonjj/pelican,ingwinlu/pelican,JeremyMorgan/pelican,zackw/pelican,HyperGroups/pelican,jimperio/pelican,treyhunner/pelican,kennethlyn/pelican,abrahamvarricatt/pelican,koobs/pelican,11craft/pelican,deanishe/pelican,kernc/pelican,joetboole/pelican,farseerfc/pelican,sunzhongwei/pelican,koobs/pelican