Mentions of traditional snippets in 5.0 doc

[Bischoff]

Problem description

In modules/client-configuration/pages/autoinst-profiles.adoc, one reads

Use a snippet by inserting the [option]``$SNIPPET()`` macro in your autoinstallation file.
For example, in {kickstart}:

----
$SNIPPET('spacewalk/rhel_register_script')
----

Or, in {ay}:

----
<init-scripts config:type="list">
  $SNIPPET('spacewalk/sles_register_script')
</init-scripts>
----

The two macros rhel_register_script and sles_register_script are for traditional clients.

Use their Salt minion equivalents instead.

Steps to reproduce

1. see description

Uyuni version

5.0 RC

Uyuni proxy version (if used)

No response

Useful logs

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Additional information

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