Update 01-installation.md

[Awokein]

Restructured a sentence so that it gets the point across better. This new sentence structure tells the user why installing Cmdr on a shared space is not the best option and why installing Cmdr on the server is more beneficial than the contrary.

Please replace this sentence with the details of your pull request; make sure you leave in and tick the declarations below.

Declarations:

• [ ✅] I declare that this contribution was created in whole or in part by me
• [✅ ] I declare that I have the right to submit this contribution under the terms of this repository's license and declarations.
• [✅ ] I understand and agree that this contribution and a record of it are public, maintained permanently, and may be redistributed infinitely under the terms of this repository's license.

In other words, you assert that you hold the copyright for your contribution and you agree that your contribution may be redistributed under the terms of the license

[autonordev]

These changes aren't great and don't match our existing docs style, but I can see how the original wording wasn't clear. I've made a change to the installation instructions.