Merge pull request #3 from mrsuh/tests

Tests

Author: mrsuh

.github/workflows/tests.yml

@@ -15,6 +15,7 @@ jobs:
                     - "7.4"
                     - "8.0"
                     - "8.1"
+                    - "8.2"
                 operating-system:
                     - "ubuntu-latest"
 

README.md

@@ -96,7 +96,7 @@ PHP 8.1.2 Linux(x86_64)
 
 ### How to reproduce a table of numbers above
 ```bash
-git clone git@github.com:mrsuh/php-var-sizeof.git && cd php-var-sizeof
+git clone --recurse-submodules git@github.com:mrsuh/php-var-sizeof.git && cd php-var-sizeof
 composer install
 docker build -t image-php-var-sizeof .
 docker run -it --rm --name my-running-script -v "$PWD":/app image-php-var-sizeof php bin/render-table.php