Fix guru file. Rename to zip.

Author: ilopX

README.md

@@ -18,7 +18,7 @@ It contains **Dart** examples for all classic **GoF** design patterns.
     - [x] **Memento** - [[Conceptual](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/memento/conceptual)] [[![16x16](https://user-images.githubusercontent.com/8049534/171852337-57db0faf-1f5e-489a-a79a-22ed4f47b4ed.png) Memento Editor](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/memento/memento_editor)] 
     - [x] **Observer** - [[Open-Close Editor Events](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/observer/open_close_editor_events)] [[AppObserver](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/observer/app_observer)] [[![16x16](https://user-images.githubusercontent.com/8049534/171852337-57db0faf-1f5e-489a-a79a-22ed4f47b4ed.png) Subscriber Flutter Widget](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/observer/subscriber_flutter_widget)]
     - [x] **State** - [[Conceptual](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/state/three_state)] [[![16x16](https://user-images.githubusercontent.com/8049534/171852337-57db0faf-1f5e-489a-a79a-22ed4f47b4ed.png) State Manipulator](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/state/manipulator_state)]
-    - [x] **Template Method** - [Data Miner](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/template_method/data_miner) 
+    - [x] **Template Method** - [[Data Miner](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/template_method/data_miner)] 
     - [X] **Visitor**  [[Shape XML Exporter](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/visitor/shapes_exporter)]
     - [X] **Strategy** [[Reservation Cargo Spaces](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/strategy/reservation_cargo_spaces)]
 - [ ] **Structural**

patterns/template_method/data_miner/README.md

@@ -18,7 +18,7 @@ void main() {
   CsvMiner('twitter_workers.csv').mine();
 
   print('GuruMiner');
-  GuruMiner('refactoring_guru_workers.guru').mine();
+  ZipMiner('refactoring_guru_workers.zip').mine();
 }
 ```