docs: Use clearer placeholder format for project name

Co-authored-by: Jen-Uno <214558326+Jen-Uno@users.noreply.github.com>

Author: Copilot

doc/articles/Uno-UI-Performance.md

@@ -127,7 +127,7 @@ Here's what to look for:
 - [Enable Startup Tracing](https://devblogs.microsoft.com/dotnet/performance-improvements-in-dotnet-maui/#record-a-custom-aot-profile) by running the following:
 
     ```bash
-    dotnet add package Mono.AotProfiler.Android --project MyApp
+    dotnet add package Mono.AotProfiler.Android --project [YourProjectName]
     dotnet build -t:BuildAndStartAotProfiling
     # Wait until the app launches, then navigate around the most common screens
     dotnet build -t:FinishAotProfiling

doc/articles/guides/raygun-monitoring.md

@@ -38,7 +38,7 @@ Start by creating a new Uno Platform project using your preferred development en
 Install the Raygun package in your Uno Platform application. Use the Manage NuGet Packages option or the following dotnet CLI command:
 
 ```sh
-dotnet add package Mindscape.Raygun4Net.NetCore --project MyApp
+dotnet add package Mindscape.Raygun4Net.NetCore --project [YourProjectName]
 ```
 
 ### Step 3 - Create a RaygunClient