.Net: Update README.md (#9049)

Fixed url:s in documentation that lead to 404's

### Motivation and Context

Url's were broken in the docs

### Description

Pointed them to the correct location 

### Contribution Checklist

- [x] The code builds clean without any errors or warnings
- [x] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [x] All unit tests pass, and I have added new tests where possible
- [x] I didn't break anyone 😄

dotnet/samples/GettingStartedWithProcesses/README.md

@@ -21,8 +21,8 @@ The getting started with agents examples include:
 
 Example|Description
 ---|---
-[Step01_Processes](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/GettingStartedWithProcesses/Step01_Processes.cs)|How to create a simple process with a loop and a conditional exit
-[Step02_AccountOpening](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/GettingStartedWithProcesses/Step02_AccountOpening.cs)|Showcasing processes cycles, fan in, fan out for opening an account.
+[Step01_Processes](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/GettingStartedWithProcesses/Step01/Step01_Processes.cs)|How to create a simple process with a loop and a conditional exit
+[Step02_AccountOpening](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/GettingStartedWithProcesses/Step02/Step02_AccountOpening.cs)|Showcasing processes cycles, fan in, fan out for opening an account.
 
 ### Step01_Processes