How to publish nuget package update?

Well, this is my first Nuget package I publish, it's as simple as any first..

I've published it through this command line:

nuget push PKG.1.0.0.0.nupkg 0000000-000-0000-0000-0000000000 -Source https://www.nuget.org/api/v2/package

but I don't know how to update it, you know how difficult it is to google "update nuget package"!