Help with rooting Nexus 5+Install costume recovery topic

Hey guys i updated my device a while ago and now i have 5.0.1 version.

I don't have recovery and i dont have root access.

can someone please give me a guide how to install costume recovery again?

i'll install TWRP 2.0.8.1 recovery and then i'll root my device because now i can't.

thnaks for anyone who will help.