Migrates solution to .slnx format (#208)

Updates the solution file format from .sln to the more modern .slnx format.

This provides a cleaner, folder-based structure within the solution explorer and simplifies management of projects.

Also updates documentation and build scripts to reflect the solution file name change.

Author: edumserrano

.github/workflows/build-test.yml

@@ -27,7 +27,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     env:
       SLN_DIR: MarkdownLinkCheckLogParser
-      SLN_FILENAME: MarkdownLinkCheckLogParser.sln
+      SLN_FILENAME: MarkdownLinkCheckLogParser.slnx
       TEST_RESULTS_ARTIFACT_NAME: test-results
       CODE_COVERAGE_ARTIFACT_NAME: code-coverage-report
     steps:

MarkdownLinkCheckLogParser/MarkdownLinkCheckLogParser.sln

@@ -0,0 +1,8 @@
+<Solution>
+  <Folder Name="/src/">
+    <Project Path="src/MarkdownLinkCheckLogParserCli/MarkdownLinkCheckLogParserCli.csproj" />
+  </Folder>
+  <Folder Name="/tests/">
+    <Project Path="tests/MarkdownLinkCheckLogParserCli.Tests/MarkdownLinkCheckLogParserCli.Tests.csproj" />
+  </Folder>
+</Solution>

MarkdownLinkCheckLogParser/MarkdownLinkCheckLogParser.slnx

@@ -20,19 +20,19 @@
 
 ### Building with Visual Studio
 
-1) Clone the repo and open the **MarkdownLinkCheckLogParser.sln** solution file at `/MarkdownLinkCheckLogParser`.
+1) Clone the repo and open the **MarkdownLinkCheckLogParser.slnx** solution file at `/MarkdownLinkCheckLogParser`.
 2) Press build on Visual Studio.
 
 ### Building with dotnet CLI
 
 1) Clone the repo and browse to the solution's directory at `/MarkdownLinkCheckLogParser` using your favorite shell.
-2) Run **`dotnet build MarkdownLinkCheckLogParser.sln`** to build the source of the CLI app.
+2) Run **`dotnet build MarkdownLinkCheckLogParser.slnx`** to build the source of the CLI app.
 
 ## Running MarkdownLinkCheckLogParser solution tests
 
 ### Run tests with Visual Studio
 
-1) Clone the repo and open the **MarkdownLinkCheckLogParser.sln** solution file at `/MarkdownLinkCheckLogParser`.
+1) Clone the repo and open the **MarkdownLinkCheckLogParser.slnx** solution file at `/MarkdownLinkCheckLogParser`.
 2) Go to the test explorer in Visual Studio and run tests.
 
 **Note:** [Remote testing](https://docs.microsoft.com/en-us/visualstudio/test/remote-testing?view=vs-2022) with is configured on the solution which enables you to run the tests locally on Linux or on Windows. You can view the configuration file at [testenvironments.json](/MarkdownLinkCheckLogParser/testenvironments.json). To run the tests on Linux you need to have at least `Visual Studio 2022` and:
@@ -43,7 +43,7 @@
 ### Run tests with dotnet CLI
 
 1) Clone the repo and browse to the solution's directory at `/MarkdownLinkCheckLogParser` using your favorite shell.
-2) Run **`dotnet test MarkdownLinkCheckLogParser.sln`** to run tests.
+2) Run **`dotnet test MarkdownLinkCheckLogParser.slnx`** to run tests.
 
 ## Building and running the Docker container action