Upgrade framework

vendor/sebastian/global-state/README.md

@@ -1,15 +1,20 @@
-# GlobalState
+# sebastian/global-state
+
+[![CI Status](https://github.com/sebastianbergmann/global-state/workflows/CI/badge.svg)](https://github.com/sebastianbergmann/global-state/actions)
+[![Type Coverage](https://shepherd.dev/github/sebastianbergmann/global-state/coverage.svg)](https://shepherd.dev/github/sebastianbergmann/global-state)
 
 Snapshotting of global state, factored out of PHPUnit into a stand-alone component.
 
-[![Build Status](https://travis-ci.org/sebastianbergmann/global-state.svg?branch=master)](https://travis-ci.org/sebastianbergmann/global-state)
-
 ## Installation
 
-To add this package as a local, per-project dependency to your project, simply add a dependency on `sebastian/global-state` to your project's `composer.json` file. Here is a minimal example of a `composer.json` file that just defines a dependency on GlobalState:
+You can add this library as a local, per-project dependency to your project using [Composer](https://getcomposer.org/):
 
-    {
-        "require": {
-            "sebastian/global-state": "1.0.*"
-        }
-    }
+```
+composer require sebastian/global-state
+```
+
+If you only need this library during development, for instance to run your project's test suite, then you should add it as a development-time dependency:
+
+```
+composer require --dev sebastian/global-state
+```