windowsのコマンプロンプトでpython -m pip install --upgradeをいれたら、
ERROR: You must give at least one requirement to install (see "pip help install")
WARNING: You are using pip version 20.2.3; however, version 21.0.1 is available.
You should consider upgrading via the 'C:\Users\Hotta Jun\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\python.exe -m pip install --upgrade pip' command.
と表示された。python -m pip install --upgradeを実行できる様にするには、どうしたらよいか。