Update README.md, consistent use of spaces instead of tabs, better examples

src/Task/Tasks.php

@@ -6,32 +6,32 @@ use React\EventLoop\LoopInterface;
 
 class Tasks
 {
-	/** @var Task[] */
-	private array $tasks;
-	private ?LoopInterface $loop = null;
+    /** @var Task[] */
+    private array $tasks;
+    private ?LoopInterface $loop = null;
 
-	public function __construct(Task ...$tasks)
-	{
-		$this->tasks = $tasks;
-	}
+    public function __construct(Task ...$tasks)
+    {
+        $this->tasks = $tasks;
+    }
 
-	public function enable(LoopInterface $loop): void
-	{
-		if (is_null($this->loop)) {
-			$this->loop = $loop;
-			foreach ($this->tasks as $task) {
-				$task->enable($this->loop);
-			}
-		}
-	}
+    public function enable(LoopInterface $loop): void
+    {
+        if (is_null($this->loop)) {
+            $this->loop = $loop;
+            foreach ($this->tasks as $task) {
+                $task->enable($this->loop);
+            }
+        }
+    }
 
-	public function cancel(): void
-	{
-		if (!is_null($this->loop)) {
-			foreach ($this->tasks as $task) {
-				$task->cancel($this->loop);
-			}
-			$this->loop = null;
-		}
-	}
+    public function cancel(): void
+    {
+        if (!is_null($this->loop)) {
+            foreach ($this->tasks as $task) {
+                $task->cancel($this->loop);
+            }
+            $this->loop = null;
+        }
+    }
 }