diff --git a/.gitignore b/.gitignore
index 78f83f7..d1e4bf6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,18 @@
-.DS_Store
+# Composer
 composer.lock
-vendor
-.idea
-composer.phar
+/vendor
+
+# PHPUnit
+/.phpunit.cache
 .phpunit.result.cache
-build/
\ No newline at end of file
+
+# IDEs
+/.fleet
+/.idea
+/.vscode
+
+# Build artifacts and temporary files
+.DS_Store
+clover.xml
+/build
+/coverage
diff --git a/README.md b/README.md
index 2bf515c..6c90e00 100644
--- a/README.md
+++ b/README.md
@@ -183,9 +183,9 @@ The following function uses the `htmlspecialchars` function
 with specific flags to ensure proper encoding:
 
 ```php
-function html(string $text = null): string
+function html(?string $text = null): string
 {
-    return htmlspecialchars($text, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
+    return htmlspecialchars($text ?? '', ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
 }
 ```