slmgr, slmgr.vbs: add page

[reinhart1010]

• The page (if new), does not already exist in the repository.
• The page is in the correct platform directory (common/, linux/, etc.)
• The page has 8 or fewer examples.
• The PR title conforms to the recommended templates.
• The page follows the content guidelines.
• The page description includes a link to documentation or a homepage (if applicable).

Version of the command being documented (if known): Windows 10 (also applies to Windows 7 and up)

The official program name for this is slmgr.vbs. However, users might be bothered after finding out they need to use tldr slmgr.vbs instead of tldr slmgr to view this documentation. This is why I decided to set the otherwise, where slmgr.vbs is an alias of slmgr. This will also be useful for documenting other Windows-specific .vbs scripts such as ospp.vbs as long as the unprefixed command is still acceptable for use in the Command Prompt.

[marchersimon]

@reinhart1010 if the official name includes the .vbs and you have to call it with slmgr.vbs, we should use this as the main page and add slmgr as an alias page

[reinhart1010]

Anyway I've already swapped the alias page and apply case-sensitive tags (e.g. [d]isplay instead of [D]isplay) here

[marchersimon]

Don't need those two command Administrator privileges?

[CLAassistant]

All committers have signed the CLA.

[reinhart1010]

Oh, sounds like a new CLA has arrived since.

[kbdharun]

Oh, sounds like a new CLA has arrived since.

It isn't a new CLA, the old CLA spelt TDLR pages instead of TLDR pages, and I requested Waldyrus to update it, he updated it in his Gist file, which contains the CLA (as CLA Assitant only supports GitHub Gists), even though it was a single character edit, CLA Assistant flagged it as a change to the terms and invalidated the existing people who signed the CLA.

[Waples]

I'm not signing off on this one yet, something I'm looking into..