Add file to description how to use zsh_nvm_auto_load

plugins/nvm/README.md

@@ -0,0 +1,15 @@
+# NVM plugin
+
+## Description
+
+This plugin provides load nvm if it exists and when the .nvmrc file exists in your directory, it will download the described node version.
+
+To start using it:
+  * Add the `ZSH_NVM_AUTOLOAD=true` at the beginning of the file `~/.zshrc`
+  * Add `nvm` plugin to your plugins array in `~/.zshrc`
+
+```zsh
+ZSH_NVM_AUTOLOAD=true
+# ...
+plugins=(... nvm)
+```