Last fixes.

Author: tobiasraabe

docs/source/tutorials/skipping_tasks.md

@@ -14,7 +14,7 @@ skip tasks during development that take too much time to compute right now.
 ```
 
 Not only will this task be skipped, but all tasks depending on
-`time_intensive_product`.pkl\`.
+`time_intensive_product.pkl`.
 
 ## Conditional skipping
 

src/_pytask/nodes.py

@@ -359,6 +359,7 @@ def signature(self) -> str:
         return hashlib.sha256(raw_key.encode()).hexdigest()
 
     def load(self, is_product: bool = False) -> Path:
+        """Inject a path into the task when loaded as a product."""
         if is_product:
             return self.root_dir  # type: ignore[return-value]
         msg = "'DirectoryNode' cannot be loaded as a dependency"  # pragma: no cover