fix commands and .NET-version in README (#1331)

* fix commands and .NET-version in README
* enable mandatory build for doc changes

Co-authored-by: Martin Regen <mregen@microsoft.com>

README.md

@@ -63,17 +63,17 @@ All the tools you need for .NET Standard come with the .NET Core tools. See [Get
 3. Hit `F5` to build and execute the sample.
 
 ## How to build and run the console samples on Windows, Linux and iOS
-This section describes how to run the and **NetCoreReferenceServer** sample application.
+This section describes how to run the **ConsoleReferenceServer** sample application.
 
-Please follow instructions in this [article](https://aka.ms/dotnetcoregs) to setup the dotnet command line environment for your platform. As of today .NET Core SDK 2.1 is required.
+Please follow instructions in this [article](https://aka.ms/dotnetcoregs) to setup the dotnet command line environment for your platform. As of today .NET Core SDK 2.1 is required for Visual Studio 2017 and .NET Core SDK 3.1 is required for Visual Studio 2019.
 
 ### Prerequisites
-1. Once the `dotnet` command is available, navigate to the root folder in your local copy of the repository and execute `dotnet restore UA Reference.sln`. This command calls into NuGet to restore the tree of dependencies.
+1. Once the `dotnet` command is available, navigate to the root folder in your local copy of the repository and execute `dotnet restore 'UA Reference.sln'`. This command calls into NuGet to restore the tree of dependencies.
 
 ### Start the server 
 1. Open a command prompt. 
-2. Navigate to the folder **Applications/NetCoreReferenceServer**. 
-3. To run the server sample type `dotnet run --project NetCoreReferenceServer.csproj -a`. 
+2. Navigate to the folder **Applications/ConsoleReferenceServer**. 
+3. To run the server sample type `dotnet run --project ConsoleReferenceServer.csproj -a`. 
     - The server is now running and waiting for connections. 
 
 ## Remarks

azure-pipelines.yml

@@ -10,9 +10,6 @@ pr:
   paths:
     include:
     - '*' 
-    exclude:
-    - 'Docs/*' 
-    - 'README.md' 
 
 stages:
 - stage: build