Cleanup readme and add workflow

.github/workflows/test.yaml

@@ -0,0 +1,43 @@
+# OS: Linux; Symfony: latest stable; PHP: all the commonly used versions supported by this bundle
+name: "Tests"
+
+on:
+  pull_request:
+  push:
+    branches:
+      - 'main'
+
+env:
+  fail-fast: true
+
+jobs:
+  tests:
+    name: "PHP ${{ matrix.php-version }}"
+    runs-on: 'ubuntu-latest'
+    continue-on-error: false
+    strategy:
+      matrix:
+        php-version: ['7.4', '8.0', '8.1', '8.2', '8.3']
+    steps:
+      - name: 'Checkout code'
+        uses: actions/checkout@v3
+
+      - name: 'Install PHP with extensions'
+        uses: shivammathur/[email protected]
+        with:
+          coverage: none
+          php-version: ${{ matrix.php-version }}
+          tools: composer:v2
+          extensions: mbstring, intl
+          ini-values: date.timezone=UTC
+
+      - name: 'Install project dependencies'
+        run: |
+          composer global config --no-plugins allow-plugins.symfony/flex true
+          composer global require --no-progress --no-scripts --no-plugins symfony/flex
+          composer update --no-interaction --prefer-dist --optimize-autoloader --prefer-stable
+          vendor/bin/simple-phpunit install
+      - name: 'Run tests'
+        env:
+          SYMFONY_DEPRECATIONS_HELPER: 'max[indirect]=10&max[total]=27'
+        run: vendor/bin/simple-phpunit -v

README.md

@@ -20,10 +20,6 @@ A lightweight lexical string parser for BBCode styled markup.
 
 ### Code Quality Assurance ###
 
-| SLInsight | Travis CI |  Gitter | Coverage | StyleCI |
-| ----------|-----------|---------|----------|---------|
-|[![SensioLabsInsight](https://insight.sensiolabs.com/projects/f355c58b-f9b6-482c-8d2d-d1bc8791c9e5/big.png)](https://insight.sensiolabs.com/projects/f355c58b-f9b6-482c-8d2d-d1bc8791c9e5) |[![Build Status](https://travis-ci.org/helios-ag/FMBbCodeBundle.png?branch=master)](https://travis-ci.org/helios-ag/FMBbCodeBundle)|[![Join the chat at https://gitter.im/helios-ag/FMBbCodeBundle](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/helios-ag/FMBbCodeBundle?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)|[![Coverage Status](https://coveralls.io/repos/helios-ag/FMBbCodeBundle/badge.svg?branch=master&service=github)](https://coveralls.io/github/helios-ag/FMBbCodeBundle?branch=master)|[![StyleCI](https://styleci.io/repos/2714013/shield)](https://styleci.io/repos/2714013)|
-
 
 | Deps Status | Version |  Downloads |
 | ----------|-----------|---------|