diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index a00cee1..9afa737 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -10,9 +10,9 @@ repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
     rev: v0.3.0
     hooks:
-      - id: ruff   # Linting
+      - id: ruff  # Linting
 
   - repo: https://github.com/psf/black
-    rev: stable
+    rev: 24.4.2
     hooks:
       - id: black  # formatting
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..bd945f2
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# README
+
+neuer Branch -> Übung1 (mit Tag) und PR
diff --git a/moduleA.py b/moduleA.py
new file mode 100644
index 0000000..b7f0906
--- /dev/null
+++ b/moduleA.py
@@ -0,0 +1,10 @@
+def addition(a=1, b=2):
+    return a + b
+
+
+def f(x: int, y: int) -> int:
+    return x + y
+
+
+if __name__ == "__main__":
+    print(addition(5, 5))
diff --git a/pyproject.toml b/pyproject.toml
index d6609b8..3c32f93 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,2 @@
 [tool.pytest.ini_options]
 pythonpath = ["."]
-
diff --git a/test_moduleA.py b/test_moduleA.py
new file mode 100644
index 0000000..42fe6cc
--- /dev/null
+++ b/test_moduleA.py
@@ -0,0 +1,6 @@
+from src.moduleA import addition
+
+
+def test_a():
+    assert addition() == 3
+    assert addition(5, 5) == 10