update r2.yml, change tag, move README.md

python/quality/black/black.r2.yml → black.r2.yml

 files:
-    template: ./black_code_formatter.yml
-    documentation: ./README.md
+    template: ./python/code_quality/black/black.yml
+    documentation: ./python/code_quality/black/README.md
 data:
     description: "Run black on a package"
     icon: ⚫
     public: true
     labels:
-        - black
-        - python
-        - quality
+        - Lint
+        - Utilities
+        - Code Quality
+        - Python
     license: MIT
     deprecated: false

python/quality/black/black.yml → python/code_quality/black/black.yml

 black:
     image: python:latest
-    stage: quality
+    stage: code_quality
     script:
         - python --version  # Debug
         - python -m venv venv --upgrade-deps || python -m venv venv