docs: use dotnet add package in readme

Meir017 · web-flow · commit cc32dab708ee · 2023-10-27T14:33:17.000+03:00
diff --git a/README.md b/README.md
@@ -25,7 +25,7 @@ A collection of Analyzers based on the best practices [tips](https://fluentasser
 using the latest stable version:
 
 ```powershell
-Install-Package FluentAssertions.Analyzers
+dotnet add package FluentAssertions.Analyzers
 ```
 
 ## Getting Started
