--user flag added in Makefile. Added a pyproject.toml file. setup.cfg fixed.

Makefile

@@ -1,7 +1,7 @@
-build: piggybank
+build: piggybank setup.cfg README.md
 	python setup.py sdist bdist_wheel
 install:
-	python -m pip install --upgrade dist/piggybank-1.0.0-py3-none-any.whl
+	python -m pip install --upgrade dist/piggybank-1.0.0-py3-none-any.whl --user
 uninstall:
 	python -m pip uninstall piggybank
 clean:

pyproject.toml

@@ -0,0 +1,3 @@
+[build-system]
+requires = ["setuptools", "wheel"]
+build-backend = "setuptools.build_meta"

setup.cfg

@@ -1,43 +1,52 @@
 [metadata]
 name = piggybank
 version = attr: piggybank.__version__
-description =
-    Keep track of your piggy bank by writting down quantity of coins you put,
-    not just sums. So you know how much coins you have in there.
+description = Keep track of your piggy bank
 long_description = file: README.md
-long_description_content_type = text/markdown
+long_description_content_type = text/markdown; charset=UTF-8
 author = attr: piggybank.__author__
 author_email = attr: piggybank.__email__
 url = https://arav.top
 keywords =
+    coin box
     coins
     piggy bank
-    coin box
     savings
 license = WTFPL 2.0
 license_file = COPYING
-platforms=OS Independent
+platforms = any
 classifiers =
     Development Status :: 5 - Production/Stable
     Environment :: Console
-    Operating System :: OS Independent
-    License :: Other/Proprietary License
+    Intended Audience :: End Users/Desktop
+    License :: Public Domain
     Natural Language :: English
+    Operating System :: OS Independent
+    Programming Language :: Python
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3 :: Only
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
     Topic :: Office/Business :: Financial :: Accounting
 
 [options]
-zip_safe = False
-python_requires = >=3.6
 include_package_data = True
+setup_requires =
+    setuptools
 packages = find:
+python_requires = >=3.6
+zip_safe = False
 
 [options.package_data]
 * = COPYING, README.md
 
+[sdist]
+formats = gztar
+
 [options.entry_points]
 console_scripts =
     piggybank-put = piggybank.cli.put:main
-    piggybank-take = piggybank.cli.take:main
     piggybank-show = piggybank.cli.show:main
+    piggybank-take = piggybank.cli.take:main