Add a note about required Python and Django versions to the README.
Add a note about required Python and Django versions to the README.

agepoly/mezzanine,wyzex/mezzanine,saintbird/mezzanine,douglaskastle/mezzanine,industrydive/mezzanine,PegasusWang/mezzanine,sjuxax/mezzanine,Skytorn86/mezzanine,dovydas/mezzanine,theclanks/mezzanine,wbtuomela/mezzanine,Skytorn86/mezzanine,gradel/mezzanine,SoLoHiC/mezzanine,wrwrwr/mezzanine,Kniyl/mezzanine,jerivas/mezzanine,dsanders11/mezzanine,promil23/mezzanine,orlenko/plei,viaregio/mezzanine,emile2016/mezzanine,tuxinhang1989/mezzanine,gbosh/mezzanine,agepoly/mezzanine,joshcartme/mezzanine,fusionbox/mezzanine,SoLoHiC/mezzanine,adrian-the-git/mezzanine,jjz/mezzanine,PegasusWang/mezzanine,cccs-web/mezzanine,frankchin/mezzanine,scarcry/snm-mezzanine,biomassives/mezzanine,scarcry/snm-mezzanine,stephenmcd/mezzanine,spookylukey/mezzanine,orlenko/plei,dovydas/mezzanine,jjz/mezzanine,ZeroXn/mezzanine,stbarnabas/mezzanine,molokov/mezzanine,adrian-the-git/mezzanine,orlenko/sfpirg,christianwgd/mezzanine,emile2016/mezzanine,readevalprint/mezzanine,batpad/mezzanine,nikolas/mezzanine,tuxinhang1989/mezzanine,biomassives/mezzanine,Cajoline/mezzanine,adrian-the-git/mezzanine,saintbird/mezzanine,vladir/mezzanine,spookylukey/mezzanine,frankier/mezzanine,nikolas/mezzanine,douglaskastle/mezzanine,mush42/mezzanine,ryneeverett/mezzanine,PegasusWang/mezzanine,industrydive/mezzanine,ZeroXn/mezzanine,wbtuomela/mezzanine,stephenmcd/mezzanine,agepoly/mezzanine,ryneeverett/mezzanine,wrwrwr/mezzanine,eino-makitalo/mezzanine,fusionbox/mezzanine,spookylukey/mezzanine,wbtuomela/mezzanine,SoLoHiC/mezzanine,douglaskastle/mezzanine,dovydas/mezzanine,theclanks/mezzanine,gradel/mezzanine,Kniyl/mezzanine,damnfine/mezzanine,eino-makitalo/mezzanine,jerivas/mezzanine,industrydive/mezzanine,cccs-web/mezzanine,stbarnabas/mezzanine,dustinrb/mezzanine,frankier/mezzanine,orlenko/sfpirg,saintbird/mezzanine,frankchin/mezzanine,orlenko/sfpirg,emile2016/mezzanine,wyzex/mezzanine,wyzex/mezzanine,readevalprint/mezzanine,tuxinhang1989/mezzanine,promil23/mezzanine,frankier/mezzanine,stephenmcd/mezzanine,ZeroXn/mezzanine,gradel/mezzanine,christianwgd/mezzanine,sjuxax/mezzanine,geodesign/mezzanine,viaregio/mezzanine,dsanders11/mezzanine,viaregio/mezzanine,dustinrb/mezzanine,readevalprint/mezzanine,dekomote/mezzanine-modeltranslation-backport,Skytorn86/mezzanine,AlexHill/mezzanine,guibernardino/mezzanine,frankchin/mezzanine,webounty/mezzanine,sjuxax/mezzanine,Cajoline/mezzanine,dekomote/mezzanine-modeltranslation-backport,vladir/mezzanine,nikolas/mezzanine,biomassives/mezzanine,sjdines/mezzanine,geodesign/mezzanine,orlenko/plei,webounty/mezzanine,gbosh/mezzanine,damnfine/mezzanine,batpad/mezzanine,jjz/mezzanine,dustinrb/mezzanine,molokov/mezzanine,ryneeverett/mezzanine,theclanks/mezzanine,sjdines/mezzanine,eino-makitalo/mezzanine,AlexHill/mezzanine,sjdines/mezzanine,dekomote/mezzanine-modeltranslation-backport,dsanders11/mezzanine,Cicero-Zhao/mezzanine,Cicero-Zhao/mezzanine,geodesign/mezzanine,christianwgd/mezzanine,damnfine/mezzanine,promil23/mezzanine,jerivas/mezzanine,guibernardino/mezzanine,vladir/mezzanine,molokov/mezzanine,mush42/mezzanine,gbosh/mezzanine,joshcartme/mezzanine,Cajoline/mezzanine,webounty/mezzanine,scarcry/snm-mezzanine,mush42/mezzanine,Kniyl/mezzanine,joshcartme/mezzanine