vgreduce: add page

[naiame-neltheri]

• The page(s) are in the correct platform directories: common, linux, osx, windows, sunos, android, etc.
• The page description(s) have links to documentation or a homepage.
• The page(s) follow the content guidelines.
• The page(s) follow the style guide.
• The PR contains at most 5 new pages.
• The PR title conforms to the recommended templates.
• Version of the command being documented (if known):

[Managor]

We do not use this syntax. Read the style guide and and fix the rest of the page
https://github.com/tldr-pages/tldr/blob/main/contributing-guides/style-guide.md#example-commands

[naiame-neltheri]

We do not use this syntax. Read the style guide and and fix the rest of the page https://github.com/tldr-pages/tldr/blob/main/contributing-guides/style-guide.md#example-commands

Didn't know about that I'm sorry. I have added required changes