Replacing DISABLE_CORRECTION with ENABLE_CORRECTION in zshrc template

Since commands auto-correction must be explicitly enable with
the ENABLE_CORRECTION envvar, this commit replaces the unaccurate
example in the zshrc template.
Defining nocorrect aliases only when ENABLE_CORRECTION is "true"

This commit move the nocorrect aliases definition so they're called
only when the user set ENABLE_CORRECTION to "true" to activate commands
autocorrection.
Ordering nocorrect aliases alphabetically