REFACTOR: Use simpler confirm-utils requirement

Makefile

@@ -30,10 +30,10 @@ venv:
 	python3 -m venv .venv
 
 develop:
-	pip3 install -e .[dev]
+	pip3 install -i https://pypi.confirm.ch/ -e .[dev]
 
 install:
-	pip3 install .
+	pip3 install -i https://pypi.confirm.ch/ .
 
 #
 # Development

docs/general/get_started.rst

@@ -22,7 +22,7 @@ To **install** or **upgrade** the *Blueprint Cloner* run:
 
 .. code-block:: bash
 
-   pip3 install -U -i https://pypi.confirm.ch/simple/ blueprint-cloner
+   pip3 install -U -i https://pypi.confirm.ch/ blueprint-cloner
 
 Usage
 -----

requirements.txt

-confirm-utils@https://pypi.confirm.ch/packages/confirm_utils-1.0.0-py3-none-any.whl#md5=16788b6b8bf31066b45a503ffd52abca
+confirm-utils>=1.0.0