Merge pull request 'uebung 1' (#3) from exercise1 into master

Reviewed-on: #3
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src/exercise1.py

@@ -0,0 +1,5 @@
+def remove_char(s: str) -> str:
+    return s[1:-1]
+
+
+

tests/test_exercise1.py

@@ -0,0 +1,6 @@
+from src.exercise1 import remove_char
+
+
+def test_remove_first_last_char() -> None:
+    assert remove_char("eloquent") == "loquen"
+    assert remove_char("ab") == ""