OSX – Homebrew installed NVM, but I can’t find NVM in the future?

[~] brew info nvm
nvm: stable 0.20.0, HEAD
https://github.com/creationix/nvm 
Not installed
From: https://github.com/Homebrew/homebrew/blob/master/Library/Formula/nvm.rb
==> Caveats
Add the following to $HOME/.bashrc, $HOME/.zshrc, or your shell's
equivalent configuration file:

 source $(brew --prefix nvm)/nvm.sh
< br />Node installs will be lost upon upgrading nvm. Add the following above
the source line to move install location and prevent this:

 export NVM_DIR=~/.nvm

I am using homebrew and oh in a new OSX 10.10.1 installation -my-zsh. I went through the homebrew nvm and then tried to run it, but said – zsh: command not found: nvm

Any ideas what is the problem? I can install and use git very well…

Did you follow the instructions listed in the precautions?

[~] brew info nvm
nvm: stable 0.20.0, HEAD
https://github.com/creationix/nvm 
Not installed
From: https://github.com/Homebrew/homebrew/blob/master/Library/Formula/nvm.rb
==> Caveats
Add the following to $HOME/.bashrc, $HOME/.zshrc, or your shell's
equivalent configuration file:

 source $(brew --prefix nvm)/nvm.sh
< br />Node installs will be lost upon upgrading nvm. Add the following above
the source line to move install location and prevent this:

 export NVM_DIR=~/.nvm

Without additional configuration, it does not look like it will find NVM by default..