(#195) Added note chocolatey gui can be used by one user at a time

Author: LeaDevelop

src/content/docs/en-us/chocolatey-gui/setup/installation.mdx

@@ -15,6 +15,10 @@ following command to install the latest version of Chocolatey GUI:
 choco install chocolateygui
 ```
 
+<Callout type="info">
+Chocolatey GUI is designed to be used by one user at a time on the PC. Multiple users trying to run Chocolatey GUI simultaneously is not supported.
+</Callout>
+
 ## Upgrading Chocolatey GUI
 
 If you already have Chocolatey GUI installed, you can upgrade to the latest
@@ -71,4 +75,4 @@ If you wanted to set these options globally so that all users on the machine got
 
 ```
 choco install chocolateygui --params="'/ShowConsoleOutput=$true /UseDelayedSearch=$false /OutdatedPackagesCacheDurationInMinutes=120 /Global'"
-```
+```