message: added documentation related to SPO modern UX and wrapped filepaths in code format
diff: ## How to push Application Insights JS snippet changes consumed by Application Insights dotnet package.
  1. Fork Application Insights dotnet [Repo](https://github.com/microsoft/ApplicationInsights-dotnet).
  -2. Get the latest copy of JS snippet and make changes in NETCORE\src\Microsoft.ApplicationInsights.AspNetCore\Resources.resx file.
  +2. Get the latest copy of JS snippet and make changes in `NETCORE\src\Microsoft.ApplicationInsights.AspNetCore\Resources.resx` file.
  ### Build/Test Changes:
  -1. Open Everything.sln file. Run build and Tests on AspNetCore project
  +1. Open `Everything.sln` file. Run build and Tests on AspNetCore project
  ### Test Changes Locally:
  1. Create a dot net [SampleWebApp](https://docs.microsoft.com/en-us/visualstudio/ide/quickstart-aspnet-core?view=vs-2019).
  2. Open your SampleWebApp and enable client side telemetry. More details on how to do this [here](https://docs.microsoft.com/en-us/azure/azure-monitor/app/asp-net-core#enable-client-side-telemetry-for-web-applications)
  -3. In SampleWebApp\Startup.cs configure ikey
  -4. In SampleWebApp\WebApplication1.csproj Refer the package Microsoft.ApplicationInsights.AspNetCore you just build from the build output folder: \your visual studio workspace\bin\Debug\NuGet.
  +3. In `SampleWebApp\Startup.cs` configure ikey
  +4. In `SampleWebApp\WebApplication1.csproj` Refer the package `Microsoft.ApplicationInsights.AspNetCore` you just built from the build output folder: `\your visual studio workspace\bin\Debug\NuGet`.
  ## How to inject Javascript with Sharepoint Framework Extensions through [Snippet Setup](https://github.com/microsoft/ApplicationInsights-JS/tree/master/SPO#snippet-setup-ignore-if-using-npm-setup)
  