Add docs to nrt.py
Add docs to nrt.py

numba/numba,GaZ3ll3/numba,stuartarchibald/numba,pitrou/numba,pitrou/numba,stefanseefeld/numba,gdementen/numba,gdementen/numba,stuartarchibald/numba,seibert/numba,gmarkall/numba,seibert/numba,ssarangi/numba,stefanseefeld/numba,gmarkall/numba,jriehl/numba,numba/numba,cpcloud/numba,jriehl/numba,sklam/numba,IntelLabs/numba,numba/numba,stonebig/numba,seibert/numba,ssarangi/numba,cpcloud/numba,gdementen/numba,pitrou/numba,stefanseefeld/numba,IntelLabs/numba,cpcloud/numba,cpcloud/numba,stefanseefeld/numba,stefanseefeld/numba,ssarangi/numba,stuartarchibald/numba,jriehl/numba,numba/numba,jriehl/numba,gmarkall/numba,jriehl/numba,sklam/numba,pombredanne/numba,GaZ3ll3/numba,GaZ3ll3/numba,GaZ3ll3/numba,stonebig/numba,sklam/numba,pombredanne/numba,gdementen/numba,numba/numba,pitrou/numba,stonebig/numba,gdementen/numba,IntelLabs/numba,sklam/numba,stuartarchibald/numba,pombredanne/numba,stonebig/numba,pombredanne/numba,seibert/numba,cpcloud/numba,stonebig/numba,gmarkall/numba,sklam/numba,pombredanne/numba,gmarkall/numba,IntelLabs/numba,GaZ3ll3/numba,seibert/numba,ssarangi/numba,stuartarchibald/numba,IntelLabs/numba,ssarangi/numba,pitrou/numba