Merge branch '2.1'

* 2.1:
  Replace PHPStan with Psalm
  Improve v2.0.0 blogpost link
  Sort require-dev packages

composer.json

@@ -18,13 +18,13 @@
         "symfony/proxy-manager-bridge": "^4.4|^5.0"
     },
     "require-dev": {
+        "behat/mink-selenium2-driver": "^1.3",
         "friends-of-behat/mink": "^1.7",
         "friends-of-behat/mink-browserkit-driver": "^1.3",
         "friends-of-behat/mink-extension": "^2.2",
-        "behat/mink-selenium2-driver": "^1.3",
         "friends-of-behat/page-object-extension": "^0.3.1",
         "friends-of-behat/service-container-extension": "^1.0",
-        "phpstan/phpstan-shim": "^0.11",
+        "vimeo/psalm": "3.10.1",
         "sylius-labs/coding-standard": "^3.0",
         "symfony/browser-kit": "^4.4|^5.0",
         "symfony/framework-bundle": "^4.4|^5.0",
@@ -55,7 +55,7 @@
         ],
         "analyse": [
             "vendor/bin/ecs check --ansi --no-progress-bar src tests",
-            "vendor/bin/phpstan analyse --ansi --no-progress -c phpstan.neon -l max src"
+            "vendor/bin/psalm src --no-progress"
         ]
     },
     "extra": {