py bindings readme: add ubuntu instructions
py bindings readme: add ubuntu instructions

jiawen/Halide,myrtleTree33/Halide,mikeseven/Halide,myrtleTree33/Halide,ronen/Halide,ronen/Halide,rodrigob/Halide,adasworks/Halide,lglucin/Halide,jiawen/Halide,dougkwan/Halide,fengzhyuan/Halide,tdenniston/Halide,adasworks/Halide,mcanthony/Halide,lglucin/Halide,dougkwan/Halide,dan-tull/Halide,adasworks/Halide,kenkuang1213/Halide,rodrigob/Halide,fengzhyuan/Halide,smxlong/Halide,rodrigob/Halide,dougkwan/Halide,ronen/Halide,adasworks/Halide,gchauras/Halide,myrtleTree33/Halide,mikeseven/Halide,mcanthony/Halide,rodrigob/Halide,damienfir/Halide,fengzhyuan/Halide,lglucin/Halide,rodrigob/Halide,kgnk/Halide,ayanazmat/Halide,gchauras/Halide,lglucin/Halide,damienfir/Halide,jiawen/Halide,ayanazmat/Halide,ayanazmat/Halide,fengzhyuan/Halide,delcypher/Halide,ayanazmat/Halide,gchauras/Halide,dougkwan/Halide,ronen/Halide,myrtleTree33/Halide,damienfir/Halide,mcanthony/Halide,kgnk/Halide,mcanthony/Halide,ronen/Halide,mcanthony/Halide,aam/Halide,dan-tull/Halide,myrtleTree33/Halide,psuriana/Halide,gchauras/Halide,rodrigob/Halide,mikeseven/Halide,fengzhyuan/Halide,delcypher/Halide,gchauras/Halide,delcypher/Halide,psuriana/Halide,ayanazmat/Halide,aam/Halide,fengzhyuan/Halide,mikeseven/Halide,dougkwan/Halide,aam/Halide,ayanazmat/Halide,myrtleTree33/Halide,dan-tull/Halide,smxlong/Halide,tdenniston/Halide,delcypher/Halide,smxlong/Halide,delcypher/Halide,smxlong/Halide,aam/Halide,ayanazmat/Halide,delcypher/Halide,kenkuang1213/Halide,kgnk/Halide,ronen/Halide,psuriana/Halide,smxlong/Halide,dougkwan/Halide,kgnk/Halide,jiawen/Halide,kenkuang1213/Halide,aam/Halide,mcanthony/Halide,kenkuang1213/Halide,kenkuang1213/Halide,aam/Halide,adasworks/Halide,ayanazmat/Halide,dan-tull/Halide,adasworks/Halide,aam/Halide,dan-tull/Halide,damienfir/Halide,smxlong/Halide,lglucin/Halide,fengzhyuan/Halide,kgnk/Halide,tdenniston/Halide,dan-tull/Halide,jiawen/Halide,delcypher/Halide,psuriana/Halide,mikeseven/Halide,mcanthony/Halide,psuriana/Halide,kgnk/Halide,gchauras/Halide,kgnk/Halide,jiawen/Halide,adasworks/Halide,ronen/Halide,psuriana/Halide,kenkuang1213/Halide,jiawen/Halide,fengzhyuan/Halide,tdenniston/Halide,dougkwan/Halide,lglucin/Halide,dougkwan/Halide,damienfir/Halide,damienfir/Halide,dan-tull/Halide,tdenniston/Halide,rodrigob/Halide,damienfir/Halide,delcypher/Halide,tdenniston/Halide,rodrigob/Halide,lglucin/Halide,dan-tull/Halide,kenkuang1213/Halide,smxlong/Halide,tdenniston/Halide,kgnk/Halide,myrtleTree33/Halide,ronen/Halide,psuriana/Halide,smxlong/Halide,mcanthony/Halide,damienfir/Halide,adasworks/Halide,myrtleTree33/Halide,tdenniston/Halide,kenkuang1213/Halide