Update README.md

Author: dazet

README.md

@@ -1,3 +1,79 @@
 # Gowork Safe - Type Safety Tools
 
 Mainly for Symfony
+
+### SafeAssocArray
+
+```php
+$user = [
+    'name' => 'John',
+    'age' => 18,
+    'sports' => ['football', 'handball'],
+];
+
+$safe = SafeAssocArray::from($user);
+$safe->string('name');             // 'John'
+$safe->int('age');                 // 18
+
+$safe->string('nickname', '--');   // '-'
+$safe->stringNullable('nickname'); // NULL
+$safe->string('nickname');         // InvalidArgumentException
+
+$safe->strings('sports');          // ['football', 'handball']
+$safe->ints('sports');             // InvalidArgumentException
+
+```
+
+### SafeConsoleInput
+
+```php
+final class ExampleCommand extends Command
+{
+    // ...
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $arguments = SafeConsoleInput::arguments($input);
+        
+        // require string from argument
+        $file = $arguments->string('name');
+    
+        $options = SafeConsoleInput::options($input);
+        
+        // integer with default value
+        $limit = $options->int('limit', 20);
+        
+        // optional integer value
+        $pageOrNull = $options->intNullable('page');
+        
+        // bool
+        $isDryRun = $options->bool('dry-run', false);
+        
+        // string[]
+        $tags = $options->strings('tag');
+        
+        // int[]
+        $tags = $options->ints('status');
+    }
+}
+```
+
+### SafeRequest
+
+```php
+final class ExampleAction extends Command
+{
+    // ...
+    public function __invoke(Request $request): Response
+    {
+        $safeRequest = SafeRequest::from($request);
+        $query = $safeRequest->query();
+        $post = $safeReques->request();
+        $attributes = $safeReques->attributes();
+        
+        $ip = $safeReques->ip();
+        $postId = $attributes->string('postId');
+        $tags = $post->strings('tags');
+        // ...
+    }
+}
+```