Update cheatsheets

security-checker

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# security-checker
+
+> Check if a PHP application uses dependencies with known security vulnerabilities.
+> More information: <https://github.com/sensiolabs/security-checker>.
+
+- Look for security issues in the project dependencies (based on the `composer.lock` file in the current directory):
+
+`security-checker security:check`
+
+- Use a specific `composer.lock` file:
+
+`security-checker security:check {{path/to/composer.lock}}`
+
+- Return results as a JSON object:
+
+`security-checker security:check --format=json`