docs: scrub machine path from deploy examples

Replace the personal ServUO checkout path (C:\Users\...\servuo) with a
<servuo> placeholder in the README and deploy.ps1 usage examples.

deploy.ps1

@@ -9,8 +9,8 @@
     Run with -Verify first. It reports what would change and touches nothing.
 
 .EXAMPLE
-    .\deploy.ps1 -ServerPath C:\Users\colby\Desktop\servuo -Verify
-    .\deploy.ps1 -ServerPath C:\Users\colby\Desktop\servuo
+    .\deploy.ps1 -ServerPath <servuo> -Verify
+    .\deploy.ps1 -ServerPath <servuo>
 #>
 [CmdletBinding()]
 param(