Create zcount.markdown
Create zcount.markdown

Explain the ZCOUNT command, its time complexity and return value.
badboy/try.redis,supasate/try.redis,PradheepShrinivasan/try.redis,NoellyB76/try.redis,badboy/try.redis,PradheepShrinivasan/try.redis,PradheepShrinivasan/try.redis,NoellyB76/try.redis,badboy/try.redis,supasate/try.redis,NoellyB76/try.redis,supasate/try.redis